On Monday, Janelle earned $21 for 7 hours of babysitting. Getting paid the
same rate, she earned $48 for babysitting on Saturday. How many hours
did Janelle babysit on Saturday? *

Answer:

56 meters

none of these

Step-by-step explanation:

4*2=8

8*6=48

48+8=56

Answer:

32

Step-by-step explanation:

you add all the sides and to find the missing side you add 4+4 because it is the opposite and the other 8-6 to get 2 so 4+8+8+6+4+2=32

Answer:

The answer is 30

Step-by-step explanation:

30÷2=15

25-15=10

Answer:

30

Step-by-step explanation:

25-30/2 = 25-15 = 10 Hope this helps!

Answer:

147$

Step-by-step explanation:

105/5 = x/7

x = 105*7/5 = 147

Multiply each term of 82 by each broken term of 34, i.e.

[tex] \tt \multimap \: 80 \times (30 + 4) + 2 \times (30 + 4)[/tex]

[tex] \tt \nrightarrow \: 80 \times 34 + 2 \times 34[/tex]

[tex] \tt \Rrightarrow \: 2720 + 68[/tex]

[tex] \tt \rightharpoonup \: 2788[/tex]

Multiply each term of 69 by each broken term of 12, i.e.

[tex] \sf \multimap \: 70 \times (10 + 2) - 1(10 + 2)[/tex]

[tex] \sf \nrightarrow \: 70 \times 12 - 1 \times 12[/tex]

[tex] \sf \Rrightarrow \: 840 - 12[/tex]

[tex] \sf \rightharpoondown \: 828[/tex]

1. Ratio of medals won by Josephine to the total number won by the team: 1/13 (A)

2. Ratio of medals won by Jacob to medals won by Antonio: 2/1 (D)

Ratio can be described as a quantitative relation that compares how many times a value is contained in another.

1. Ratio of medals won by Josephine to the total number won by the team:

Total won by the team = 26

Medals won by Josephine = 2

Ratio = 2:26 = 2/26

= 1/13 (A)

2. Ratio of medals won by Jacob to medals won by Antonio:

Jacob = 8

Antonio = 4

Ratio = 8:4 = 8/4

= 2/1 (D)

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Answer:

x² + x - 12 = 0

Step-by-step explanation:

If x = -4 and x = 3 are solutions to a quadratic equation, then

(x + 4)(x - 3) = 0

Expand the brackets:  x² - 3x + 4x - 12 = 0

Combine like terms:  x² + x - 12 = 0

Answer:

T-shirts= 5

Step-by-step explanation:

Remi plans on spending 75$ and she already bought a hoodie that cost $30.

x= how many hoodies you buy.  

Inequality- $75= 30+75+x

Next- 75-30= $45

Finally- 45/9= 5 t-shirts that you can buy.

Hope that helped! :)

Tammy must give Qiulian 800 cards, so that they have the same number of card.

Given the following data:

Translating the word problem into an algebraic expression, we have;

Qiulian and Tammy have 2400 cards:

[tex]Q+T=2400[/tex]    .....equation 1.

Tammy has twice as many cards as Qiulian:

[tex]T=2Q[/tex]   .....equation 2.

To determine the amount of card that Tammy must give Qiulian so that they have the same number of card:

Substituting eqn. 2 into eqn. 1, we have:

[tex]Q+2Q=2400\\\\3Q=2400\\\\Q=\frac{2400}{3}[/tex]

Q = 800 cards.

For Tammy:

[tex]T =2Q\\\\T=2\times 800[/tex]

T = 1600 cards.

Therefore, Tammy must give Qiulian 800 cards, so that they have the same number of card.

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Answer:

2.267742732288 × 1012

Step-by-step explanation:

Answer:

Step-by-step explanation:

Number of 4 generated is 7 and number of 7 generated is 5.

Total of 7 + 5 = 12 outcomes out of 50:

The experimental probability of the computer generating a 4 or a 7 is D. 24%.

Experimental probability calculates the probability of some event from the results of experiments.

For an event E, we get the experimental probability of that event

[tex]P_e(E) = \dfrac{\text{Number of times E occurred}}{\text{Number of times experiments was done}}[/tex]

where P_e(E) is denoting the experimental probability of occurrence of E.

A computer generates 50 integers from 1 to 8 at random. The results are recorded in this table.

Outcome 1 2 3 4 5 6 7 8

Number of times outcome occurred

5 8 9 7 4 6 5 6

The Total of 7 + 5 = 12 outcomes out of 50:

The experimental probability of the computer generating a 4 or a 7

P(4 or 7) = 12/50

= 24/100

= 24%

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The Bernoulli counting process depicts that the value of X6 will be 0.

The value of X6 will be:

= N6 - N5

= 3 - 3

= 0

Also, the value of S3 will be:

X1 = 1 - 0 = 1

X2 = 1 - 1 = 0

X3 = 1 - 1 = 0

Therefore, S3 will be:

= X1 + X2 + X3

= 1 + 0 + 0

= 1

In conclusion, the value of S3 is 1.

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Answer:

It might be 96. I don't know

Step-by-step explanation:

Answer:

infinite

Step-by-step explanation:

Answer and Step-by-step explanation:

So for this question, we need to create an equation. We will use one of the most common forms of equations of math, which would be the linear equation of y=mx+b. The only difference is, we need to change the = to a ≥ symbol, meaning greater than or equal to, because the 100 dollars needs to be more or equal to the amount spent. But we cannot solve this problem until we know where everything goes.

So, the 100 is all she can spend, so this is where the ≤ comes in handy. She can use less than or equal to the amount of 100 dollars for the food for this party. And because she started out with 19 dollars, that can be added into the problem. So far we have:

100 ≥ __x + 19.

Now we need to find what the missing part of the equation is. But first let's change the x to p in this equation so that it is easier to understand. The p stands for the amount of pizzas purchased. Each pizza costs 7 dollars, so the equation should look like this:

100 ≥ 7p + 19. Now we solve for p.

-19           - 19 Subtract 19 from both sides to cancel out the positive 19 (+ 19).

81 ≥ 7p           Divide 7 into 81 to single out p.

7      7            So p = 81/7. But we can't have 81/7 of a pizza, so we convert this to a decimal then round. So: 11.57142857… is the decimal form.

Now we need to round, because that is way too big. So, we round to the nearest whole number. So we look at the placement behind it (The tenths placement in this situation). Because the placement behind it (5) is on the 5 - 9 scale, the placement before it gets rounded up.

So, Ava can buy 12 pizzas.

I hope that this helps.

Answer:

12

Step-by-step explanation:

I Took The Test

I HOPE THIS HELPSSSSSS

GOOD LUCKKKKKK :)

Answer:

You carry the 1 bring the 2 then divide by 3 multiply by 4 times the 2nd power then gimme those points.

Step-by-step explanation:

i have no vlue

The answer to the problem(i did this question before) B

The solution to the question by reading the graph is:

When x(Time of parking) is 6 hours, y(Cost of Parking) is 12 hours.  

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

here, we have,

Mr. Chen is parking in a lot downtown. The graph shows the relationship

between the time and the total cost of parking .

now, we have to find the function for an input of 10 Cost of Parking in Lot 20.

Hence, The solution to the question by reading the graph is:

When x(Time of parking) is 6 hours, y(Cost of Parking) is 12 hours.  

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Answer:

C) translated 1 unit to the left and then rotated 180° counterclockwise about the origin

Step-by-step explanation:

by inspection, shape A has been translated 1 unit to the left and then rotated 180° counterclockwise about the origin

Answer:

[tex]5\sqrt{185}t[/tex]

Step-by-step explanation:

after time t (hr), the distance between A and starting point is 40t

the distance between B and starting point is 55t

These two distances are perpendicular to each other, so

the distance between A and B is

[tex]\sqrt{(40t)^2+(55t)^2}=\sqrt{4625t^2}=5\sqrt{185}t[/tex]

Medians bisect eachother at centroid in ratio 2:1

SU is perpendicular bisector

UY=UZ

So

Apply Pythagorean theorem

[tex]\\ \tt\hookrightarrow VY^2=XS^2-VS^2=80^2-48^2=6400-2304=4096\implies VY=64[/tex]

Answer:

XS = 80

YZ= 132

VY = 64

Step-by-step explanation:

Firstly, SU is a perpendicular bisector

so, UV= UZ and YZ = 2(66) = 132

Each median bisect each other at centre with the ratio 2 : 1

therefore ZS = 80 = XS

now , by using P.G.T

VY² = XS²-VS²

=> 80²-48²

=> 6400-2304

=> 4096

=> √4096

=> 64

VY = 64

Answer:

1) The sequence is arithmetic as the same value is added each time (there is a common difference between terms).

2) First term of the sequence = -9

3) sequence generator = + 4

Step-by-step explanation:

1) The sequence is arithmetic as the same value is added each time (there is a common difference between terms).

2) First term of the sequence = -9

3) sequence generator = + 4

Answer: bernice buys 5 VHS tapes. each VHS tape cost $9. if bernice receives a $2 discount on each vhs, what is the total amount of money she spends? write an expression that matches the words.

the answer is $11

Step-by-step explanation: 9+2=11

Step-by-step explanation:

we know that sum of all angles of a triangle is 180°

so, angle N + angle O + angle M = 180°

=> (-5b+16)+(-b+8)+(-9b-9) = 180°

=> -5b+16-b+8-9b-9 = 180°

=> -15b+15 = 180°

=> -15b = 180-15

=> -15b = 165

=> b = -165/15

=> b = -11

angle N => -5(-11)+16

=> 55+16 => 71

angle O => -(-11)+8

=> 11+8 => 19

angle M => -9(-11)-9

=> 99-9

=> 90

Answer:

A is 3/y, B is 4y

Step-by-step explanation:

Answer:6%

Step-by-step explanation:

This is pretty much asking what the percentage is!

Step-by-step explanation:

We are given that ∠ABC≅∠DEC and ∠GFE≅∠DCE

By Vertical Angles: ∠DEC≅∠GEF and ∠DCE≅∠ACB

By Substitution: ∠ABC≅∠GEF and ∠GFE≅∠ACB

By Angle-Angle Similarity: ΔABC~ΔGEF

Hope this helps! Sorry if I didn't explain well :(

Answer:

I'm certainly late, but it took me a while to figure this one out so I want to leave an answer.

A=-5 B=2 C=19 D=-2

Step-by-step explanation:

I looked back at the video and actually tried to pay attention and the way to figure these problems out is set up all of the degrees of x in an equation. So, take all of the coefficients that are attached to an x^3, and set them up equal to each other. This makes -5=A, which is the first answer. Repeat for x^2 and you have B=2. For x, it becomes 9=2A+C. A is equal to -5 (from the x^3), so you can substitute and get c=19. Repeat for the x^0 term (the constants), and you get 2=2B+D. Plug in the value for B, 2, and get 2=4+D, which then becomes D=-2. That's how you get the answer and I hope this helps somebody.

The values are A=-5, B=2, C=19 and D=-2

Partial fractions are the fractions used for the decomposition of a rational expression. When an algebraic expression is split into a sum of two or more rational expressions, then each part is called a partial fraction. Hence, basically, it is the reverse of the addition of rational expressions.

Given:(-5x³+2x²+9x+2) / x²+2 =(Ax + B)/x²+2 + (Cx + d)/x²+2 .......(1)

First, we have to perform the long division as follows

The long division gives

(-5x³+2x²+9x+2 )/ x²+2= ( -5x+2)+ (19x-2)/ x²+2

Now, we have to find the partial fraction for  (19x-2)/ x²+2

But, as denominator cannot be factored, So no partial fraction can be calculated.

Thus, (-5x³+2x²+9x+2 )/ x²+2=  ( -5x+2)+ (19x-2)/ x²+2

Comparing it with equation (1), we get

Hence, A=-5, B=2, C=19 and D= -2

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Answer:

It can be any measure

Step-by-step explanati

Answer:

x=56

Step-by-step explanation:

Hope this helps!

Answer:

x = 12.05

using sine rule:

[tex]\boxed{sin(a) = \frac{opposite}{hypotenuse} }[/tex]

Here given the angle is 35° and hypotenuse is 21.

To find x:

→ sin(35) = [tex]\frac{x}{21}[/tex]

→ x = 21 * sin(35)

→ x = 12.04510516

→ x = 12.05 ................rounded to nearest tenth.