Which of these equations is NOT true?
A) 2(a + b) = a +b+a+b
C) (t-4) +6=t-10
B) 3y + 4y = 7y
D) x(5 + 9) - x = 13x

Answer:

5

Step-by-step explanation:

1/8 divided by 5 equals 1/40

Answer:

[tex]\frac{\frac{1}{8}}{5}=\frac{1}{40}[/tex]

Step-by-step explanation:

Let 'x' be the number to which 1/8 had to be divided to get 1/40

so the equation becomes

[tex]\frac{1}{8}\div \:x=\frac{1}{40}[/tex]

[tex]\frac{\frac{1}{8}}{x}=\frac{1}{40}[/tex]

[tex]\frac{1}{8x}=\frac{1}{40}[/tex]

[tex]\mathrm{Apply\:fraction\:cross\:multiply:\:if\:}\frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c[/tex]

[tex]1\cdot \:40=8x\cdot \:1[/tex]

[tex]40=8x[/tex]

switch sides

[tex]8x=40[/tex]

Divide both sides by 8

[tex]\frac{8x}{8}=\frac{40}{8}[/tex]

[tex]x=5[/tex]

x=5 is the number.

Therefore,

1/8 divided by 5 = 1/40

i.e.

[tex]\frac{\frac{1}{8}}{5}=\frac{1}{40}[/tex]

SOLUTION CHECK

[tex]\frac{\frac{1}{8}}{5}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{\frac{a}{b}}{c}=\frac{a}{b\cdot \:c}[/tex]

[tex]=\frac{1}{8\cdot \:5}[/tex]     ∵ [tex]\frac{\frac{1}{8}}{5}=\frac{1}{8\cdot \:5}[/tex]

[tex]=\frac{1}{40}[/tex]

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[tex] \frac{20}{50} = \frac{x}{400} \\ [/tex]

[tex] \frac{x}{400} = \frac{20}{50} \\ [/tex]

[tex] \frac{x}{400} = \frac{2}{5} \\ [/tex]

Multiply sides by 400

[tex]400 \times \frac{x}{400} = 400 \times \frac{2}{5} \\ [/tex]

[tex]x = 80 \times 5 \times \frac{2}{5} \\ [/tex]

5 s are simplifies

[tex]x = 80 \times 2[/tex]

[tex]x = 160[/tex]

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Answer:

27/100?

Step-by-step explanation:

Answer:

Step-by-step explanation:

27+60= 87

Answer:

2 1/2 divided by 5/2 is 1.

6 3/4 divided by 2 1/4 is 3

3 divided by 2/3 is 9/2.

1/3 divided by 3 is 1/9.

Step-by-step explanation:

hope I helped

Answer:

i don't have an answer but im here so the guy above me can get brainliset

Step-by-step explanation:

Answer:

I think the answer is C. 6.75

Answer:

6.75

Step-by-step explanation:

Answer: The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.

Step-by-step explanation:

Standard deviation measures the spread around the mean of the different variables.

Shenika's monthly salary has a standard deviation of 7.67 while Clarissa has a standard deviation of 12.53. This means that Shenika's monthly salary is less spread out than the monthly salary of Clarissa.

Answer:

2.075 (scale to whatever your teacher wants)

Step-by-step explanation:

ratio of potatoes vs potato cost is 2:4.15

divide everything by two to find the cost of 1 potato

4.15/2=2.075

if you are dealing with money then your answer should either be 2.07 or 2.08  

Answer:

equation 400-15x. 7 weeks

Step-by-step explanation:

400-15x

Answer:

54,710

Step-by-step explanation:

multiply the average by 5 to get the amout that they should all have togetehr (271,000) and the add the 4 people's money together (216,290) and then subtract them

The annual income of the fifth salesperson is $54710 if the average annual income for five salespeople last year was $54,200.

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

It is given that:

The average annual income for five salespeople last year was $54,200. Four of the salespeople earned these annual amounts: $58,125; $53,190; $48,975 and $56,000.

Let x be the annual income of the fifth salesperson:

$54,200 = ($58,125+$53,190+$48,975+$56,000+x)/5

271000 = 216 290 + x

x = $54710

Thus, the annual income of the fifth salesperson is $54710 if the average annual income for five salespeople last year was $54,200.

Learn more about the average here:

brainly.com/question/24057012

#SPJ2

Answer:

y=1/2x+3

Step-by-step explanation:

Step-by-step explanation and answer:

The 6 sides of the die are numbered 1,2,3,4,5,6

There are 3 odd and 3 even numbers

probability of an odd number on 1st roll is:

3/6=1/2

When you want A AND B probabilities, you multiply

the events A and B

The number less than 3 are 1,2, so the probability is:

2/6=1/3

so the probability of both events are going to be:

(1/2) *(1/3)=1/6

Answer:

-12,27

Step-by-step explanation:

Answer:

55.83

Step-by-step explanation:

Divide the number of pounds by 2.2046 to use the standard equation.

Answer:

55.34 kg

Step-by-step explanation:

1 kg = 2.204 lbs

then

[tex]122 lbs\times \frac{1 \: kg}{2.204 \: lbs} [/tex]

because lbs from the numerator will goes with lbs in the denominator the only unit remains is kg

so

122 ÷ 2.204 kg = 55.34 kg

Answer:

the answer is 95

Step-by-step explanation:

[tex]180 - 50 - 35 = 95[/tex]

Answer:

105 degrees

Step-by-step explanation:

A traingle has a total of 180 degrees. The graph already tells us 2 angles, 25 and 50 degrees. So: 25+50=75

180-75=105

Answer:

$18.13

Step-by-step explanation:

It is correct

Answer:

1800 inches, 150 feet, and 50 yards

Step-by-step explanation:

First, lets start in inches. multiply 45 by 3, to get 135 feet, and add that with 10.5 to get 145.5 feet. multiply that by 12 to get 1746 inches, and add 54 to that to get 1800 inches. divided that by 12 to get 150, and divided 150 by 3 to get 50.

Answer:

The sum of interior angles of a regular polygon is 720 degree 720 720 Degree find the measure of each interior angle of the polygon

Since each angle is equal, 720 is split into 6 equal parts. So, 720/6 = 120 degrees is the measure of each interior angle.

Step-by-step explanation:

Answer:

840

Step-by-step explanation:

5%X20=100%

42X20=840

Answer: x=−0.208333

Step-by-step explanation:

hope that helps enjoy

Answer:

9 cm

Step-by-step explanation:

If the area is 81 cm², this means that the length is 9 cm as length² of a square equals its area.

Answer:

A(-a,-b)and B(-a,-b) be

distance between AB= square root(x2-x1)^2+(y2-y1)2

AB= square root (-a)-(-a)^2+(-b)-(-b)^2

AB= squareroot (-a+a)^2+(-b+b)^2

AB= square root (0)^2+(0)^2

AB=square root 0+0

AB= square root 0

AB=0 answer

this may help you !!!!!

Step-by-step explanation:

the explanation is above

Take key note of the dots bcz some are coloured and some aren't

Answer:

BE VERY VERY CAREFUL, they are delicate, also read the instructionss...ik know a couple people who didn't and almost broke it

Answer:

no but good luck and have a great day

Step-by-step explanation:

Answer:

All that u hav to do is 2 apply BODMAS rule. And it will be done. thanq

Step-by-step explanation:

Answer:

x * 17.5 = y

Step-by-step explanation:

Answer:

I do not see the shapes copy and paste them here

Answer:

-37z

Step-by-step explanation: