Answer:
a= 10/3
Step-by-step explanation:
multiply both sides by 2
get 6a +8 =28
subtract 8 from both sides
you get 6a=20
divide 6 both sides and 10/3.
Is -2/3x - 2 equivalent to -2/3x + (-2)?
Answer: Yes
Step-by-step explanation:
Estimating Using Compatible Numbers
You purchase 3 items for $4.23. About how much did you spend?
9514 1404 393
Answer:
about $12
Step-by-step explanation:
For estimating purposes, you often want to round numbers to 1 or 2 significant digits. The price $4.23 can be rounded to $4. Then 3 such items will cost about ...
3×$4 = $12
You spent about $12.
_____
Additional comments
Along with an estimate, you often want to estimate the error in the estimate. Here, a first approximation of the error is that it is 3 × $0.20 too low. That is, the estimate of spending will be closer if we revise it upward by $0.60 to $12.60.
We know that even that estimate is low by $0.03 on each of the 3 items, so a better approximation of the spending is $12.60 +0.09 = $12.69.
This has accounted for all of the errors, so the actual spending was $12.69.
PLEASE HELP MAJOR HELP DUE AT 12AM What happened to get to each step in solving the equation? 1x + x = 180 - 2 Step 1: = 180 – 2 Step 2: * = 180 Step 3: 3 = 72
Answer:
First step: Combined like terms on left side
Second step: Combined like terms on both sides
Third step: Simplified y multiplying both sides by 2/5
3. Kiran walked at a constant speed. He walked 1 mile in 15 minutes. Which of these equations represents the distance d (in miles) that Kiran walks in i minutes? Show your reasoning.
Answer:
C
Step-by-step explanation:
It is C because you get the equivalent from the t and that t is the number 1 so 15×1 is 15
The solution is Option D.
The equation is d = ( 1/15 ) t
What is Speed?
Speed is defined as the rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude
Speed = Distance / Time
Given data ,
Let the speed of Kiran be represented as = s
Let the distance traveled by Kiran be = d
Let the time taken by Kiran to travel d distance be = t
Now , the value of d = 1 mile
The time taken by Kiran t = 15 minutes
So , the speed of Kiran s is given by the formula
Speed = Distance / Time
Substituting the values in the equation , we get
s = d/t
s = 1 / 15 miles / minute
So , the speed is 1/15 miles / minute
Now , the equation to represent the distance d Kiran walks in t minutes is given by
Distance d = Speed s x Time t
d = ( 1/15 ) t
Therefore , the value of d = ( 1/15 ) t
Hence , The equation is d = ( 1/15 ) t
To learn more about speed click :
https://brainly.com/question/19930939
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Mai is making personal pizzas. For 4 pizzas, she uses 10 ounces of cheese. How much cheese does she use for each pizza?
Answer:
2.5 ouces
Step-by-step explanation:
Answer:
2.5 or 2 1/2
Step-by-step explanation:
you do 10 divided by 4 because there are 4 pizzas and 10 ounces used in total. and it equals 2.5 or 2 1/2
2. Which of these equations represents a line that passes through (5,5) and is parallel to
the graph of the equation y=-3 x-5?
Answer:
7= -3x-4
Step-by-step explanation:
George hiked from the top of a hill to the valley floor. The elevation at the top of the hill is 127 feet above sea level. The valley floor is 52 feet below sea level. George stopped at a rest stop that is at an elevation exactly halfway between the top of the hill and the valley floor. What is the elevation, in feet, of the rest stop? I need someone to also explain how they got the answer ;-;
Answer:
[tex]Halfway = 37.5[/tex] --- above the sea level
Step-by-step explanation:
Given
[tex]Top = 127ft[/tex] --- above sea level
[tex]Valley\ Floor = 52ft[/tex] --- below sea level
Required
Determine the elevation at half way
To do this, we simply add the elevations of the top of the hill and the valley floor.
Then calculate the average by dividing the sum by 2
[tex]Total = Top + Valley\ Floor[/tex]
[tex]Total = 127 + (-52)[/tex]
Note that the negative sign represents below sea level
[tex]Total = 127 -52[/tex]
[tex]Total = 75[/tex]
At half way, the elevation is:
[tex]Halfway = \frac{1}{2} * Total[/tex]
[tex]Halfway = \frac{1}{2} * 75[/tex]
[tex]Halfway = 37.5[/tex] --- above the sea level
What is the answer please help i need it now!!
Answer:
y=1/2x+11
Step-by-step explanation:
use the slope of one half and the point and put them into point slope form.
y-y1 = m(x-x1) or y-16 = 1/2(x-10), distribute 1/2
y-16=1/2x - 5, add 16 to both sides
y = 1/2x + 11
what percent of 570 kg in 190 kg
Answer:
300%
Step-by-step explanation:
write the equation of the line using the given information. type your awnser in slope intercept form,y=mx+b
Answer:
y=3/-1x+4
Step-by-step explanation:
Okay so first thing you need to know is that if there is an ordered pair (x, y) where x is 0, your y-intercept is your y. For example, your problem has (0, 4) your x is 0 and your y is 4. Therefore your y-intercept is 4 which is the b. To find your mx, or slope, you need to do (y2-y1)/(x2-x1). Your y2 will be your y in your second ordered pair and your y1 will be in your y in the first ordered pair. Same for your x. So, (4-1)/(0-1) which equals 3/-1. 3/-1 is your slope. So, your answer in slop intercept form is: y= 3/-1x+4. You could also try y= -3x+4 if that makes you more comfortable.
I know this is long this is my first time doing this lol.
Can someone please help me ASAP this is a major grade for me and I need help!!!
Complete this equation so that it has infinitely many solutions.
2(x-1/4)=6(1/4x-__)
Answer:I would but I’m clueless sorry
Step-by-step explanation:
I’m marking brainliest and giving 30 points
Which variable is most important to the following problem?
At 9:54 a.m., a patient's temperature was 101.5 degrees. At 10:41, the nurse
took the patient's temperature again and found it was 105.8 degrees, the
highest ever recorded. How long did it take for the patient's temperature to
reach this record high?
O A. the number of minutes it took for the temperature to reach its
peak
O B. the date on which the previous high was recorded
C. the number of degrees that the temperature changed
Answer:
A
Step-by-step explanation:
The problem asks for how long it takes for the temperature to reach the record high, so the number of minutes it takes for the temperature to reach its peak is what's important.
Hope this helps!
what is $5.99 for 11 lb ?
Answer:
.54
Step-by-step explanation:
5.99 divided by 11
I need some help with my homework so may someone help me not in a rush just need this done
Answer:
-25
Step-by-step explanation:
First he bought 3 tires which total costed 105, then returned 2, so he got $70 back, meaning he had $35. Then he found 2 $20 bills, which raised his total to $75. Then, he bought a phone for $90, so he has -25 dollars left
24.89
× 8
-----------
SHOW WORK
Answer:
199.12
Step-by-step explanation:
24.89
x 8.00
----------
199.12
Answer:
256.72
Step-by-step explanation:
24.89
x 8
0.09 x 8 = .72
0.8 x 8 = 64.0
4 x 8 = 32
20 x 8 = 160
Add 160 + 32 + 64 + 0.72
= 192 + 64.72
= 256.72
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
Jordan asked his classmates if their favorite kind of stories were funny stories. He drew a bar diagram to show the results of his survey.
[ Drop Down ] of Students Responded that funny stories are their favorites.
8%
20%
80%
100%
Answer:
80%
Step-by-step explanation:
dont want to go to deatals so i did it on the videos
Answer:
80
Step-by-step explanation:
Two burritos cost $14.00. Complete the table to show the cost for 4, 5, and 10 burritos at that rate. Next, find the cost for a single burrito in each case.
a) Complete the table.
b) What do you notice about the values in this table?
Answer:
4:28
5:35
10:70
Step-by-step explanation:
A 47-foot tall tree casts a shadow that is 89 feet long find the measure of the angle elevation
Answer:
The angle is [tex]\theta =27.84^o[/tex]
Step-by-step explanation:
From the question we are told that
The height of the tree is [tex]h = 47 \ ft[/tex]
The length of the shadow is [tex]L = 89 \ ft[/tex]
Generally applying SOHCAHTOA , the angle of elevation is evaluated as
[tex]tan \theta = \frac{h}{L }[/tex]
=> [tex]tan \theta = \frac{47}{89}[/tex]
=> [tex]tan \theta = 0.52809[/tex]
=> [tex]\theta = tan^{-1} [0.52809 ][/tex]
=> [tex]\theta =27.84^o[/tex]
I will mark as brainliest!!!
Rewrite as a simplified fraction.
0.67 = ?
7 is repeating
Answer:
61/90
Step-by-step explanation:
no clue at allll for
Answer:
k
Step-by-step explanation:
9x-27y+9 with steps on how to get solution
Answer:
9 ( x − 3 y + 1 )
Step-by-step explanation:
Express the ratio below in its simplest form.
2:6:4
Answer:
in simplest form, the ratio would be 1:3:2
May I have brainliest please? :)
For each equation, tell whether it is always true, sometimes true, or never true.
Answer:
False. (or never true)
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyStep-by-step explanation:
Step 1: Define
3x + 7 = 3(x + 1)
Step 2: Simplify
Distribute 3: 3x + 7 = 3x + 1Here we see that the expression 3x + 7 is not equal to 3x + 1.
Answer:
never true
3x+7 = 3 (x+1) < multiply 3 by stuff inside parentheses
3x+7 does not equal 3x+3
please answer this question
Answer:
A: 77
Step-by-step explanation:
360 - 109 - 137 - 37 = 77
Over a two-day track meet, Jason ran in one 2‑kilometer race, two 1,500‑meter races, and five 100‑meter races. How many meters did Jason run over the two days?
Answer:
5500 meters
Step-by-step explanation:
1 * (2km) + 2 *(1500m) + 5*(100m)
Hope this helps
Purchase price: $6,052; sales tax: 8%; license and title fees: $260; down payment: $1,500; payments: $180.10 for 36 months.
Find the following:
Amount Financed = $
Total Installment Price = $
Finance Charge = $
Answer:imma cry
Step-by-step explanation:I need help
can y'all help pleasee
Answer:
Step-by-step explanation:
Problem #1:
m: rise/run: 3/1
Slope : 2
y-intercept: (0,−3)
b: -3
Problem #2
m: rise/run: 3/1
y-intercept: (0,-1)
b: -1
PLZ ANSWER THIS AND PLZ DRAW A MODEL OF HOW U FOUND IT!!! I WILL MARK BRAINLIEST!!!
Answer: -24
Step-by-step explanation:
Answer:
I am not sure if you are supposed to draw a model but if you do then this is how it should look:
Q=amount of points
START:
FIRST TURN: QQQQQQQQ
SECOND TURN: QQQQQ lost 3
TOTAL AMOUNT OF POINTS: QQQQQ
Step-by-step explanation:
distance between (-12, 2) (-9, 6)
please helpppp
Answer:
square root of 65
Step-by-step explanation:
y varies directly as x. When x=3, y=5. Find y when x=4.
Answer:
y=6
Step-by-step explanation:
5-3=2
4+2=6
Answer:
~~~~
Step-by-step explanation:
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