Kristi gets $10 a week from her parents if she washes the dishes after dinner every night. Kristi has saved up $30 over the last few weeks from her allowance. She wants to continue saving her allowance until she has enough money to buy the $70 bike she saw at the store last week. Assuming Kristi receives her allowance every week, write an equation that shows how many more weeks Kristi has to save her allowance to buy the bike, where w is the number of weeks.

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

70=10w+30

70 is the total she needs for the bike, 10 is the total amount of dollars she gets per week, w is the total numbers of weeks she worked, and 30 is the total amount of money she already has.

Related Questions

what is the slope and y intercept of y=3?

Answers

Answer:

m=0; y intercept=3

Step-by-step explanation:

The line is perfectly horizontal, which means that the slope is 0. Since it is horizontal, we can reason that the y intercept has to be 3.

HTH :)

The volume of a box (v) varies directly with its length (l) if one of the boxes has a volume of 325 cubic inches and a length of 13 inches what is the costant of proportionality for the group of boxes

Answers

Answer:

The constant of proportionality for the group of boxes is: 25

Step-by-step explanation:

Proportion means that change in one quantity causes change in other quantity. Direct variation means that increase in one quantity causes increase in the other quantity.

Let l be the length and v be the volume

Then according to given statement

V∝l

Removing the proportionality symbol introduces a constant in the equation

[tex]V = kl[/tex]

Putting V = 325 and l = 13

[tex]325 =k(13)\\k = \frac{325}{13}\\k = 25[/tex]

Hence,

The constant of proportionality for the group of boxes is: 25

What is the slope of the line that passes through the points (8,2) and (9,3)? Write
your answer in simplest form.

Answers

The slope is ( 3-2 )/( 9-8) = 1

Slope = change in y / change in x
Slope = (3-2) / (9-8)
Slope = 1/1
Slope = 1

Karen bought 11/12 pound of fruit salad. How many 1/3 pound servings of fruit salad are in 11/12 pound?

Answers

Divide 11/12 and you willl get your answer

Which equation represents a line that passes through the two points in the table?

Answers

Answer: A

Step-by-step explanation:

(3,3) (6,5)

y2-y1/x2-x1 = 5-3/6-3 = 2/3

y-y1 = m(x-x1)

y-3 = 2/3(x-3)

I think the answer is A because it only makes since

As of July 1, 2014, the population of India was about 1,267,000,000.
How can you write this number in scientific notation?
1. Move the decimal point to the right of the first digit. What is the first factor?
2. Count the number of digits after the decimal point. How many places did you move the decimal point?
3. Did you move the decimal point to the right or to the left? What does this tell you about the power of 10 in the second factor?
4. What is the second factor written as a power of 10?
5. Write the population of India in scientific notation

Answers

Answer:

1. The first factor is 1.267

2. 9 Places

3. i) The decimal point was moved to the left

ii) This indicates the value of the power of 10 in the second factor

4. The second factor is 10⁹

5. The population of India in scientific notation is 1.267 × 10⁹

Step-by-step explanation:

Compare heterogeneous and homogeneous?

Answers

Answer: A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

Answer:

Just thnk of it this way: Hetero- Different. Homo- Same

Step-by-step explanation:

HELP PLS I NEED TO SOLVE THAT EQUATION NEED HELP ASAP

Answers

I believe the answer is A. The graph intersects on the y axis like it is supposed to do and it follows the pattern of the graph.

I hope this helped!

If you ride your bike 30 kilometers in 2 hours, what is your average speed?

Answers

15 km per hour because you do 30km divided by 2 hours

Answer:

15 km/h

Step-by-step explanation:

How do you add integers with different signs?

Answers

Answer:

To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest.

Step-by-step explanation:

Remove the brackets and simplfy 5-(6a -3b -8)

Answers

Answer:

−6a+3b+13

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]5 -6a+3b+8\\5+8-6a+3b\\13-6a+3b[/tex]

how do you add or subtract [-4]+6

Answers

Answer:

Step-by-step explanation:

(-4) + 6

remove the unnecessary parentheses

-4 + 6

calculate the sum which is

Answer:

Step-by-step explanation:

[-4] + 6 = 2

When two numbers are of different sign, subtract and the result will have the sign of bigger number.

Here the bigger number is 6 and it's sign is positive (+). So , the answer is +2

What is the slope of the graph of 5x-2y=20 ?

A:
-10

B:-2 over 5

C:5 over 2

D:
5

Answers

-2y=-5x+20

y=5/2x -10

the answer is C

I need help on this please

Answers

Ya I think it is also the second one

Ten baseballs weigh 1,417.4 grams. About how much does 1 baseball weigh? Round your answer to the nearest tenth of a gram. Round your answer to the nearest gram.. Which answer would you give if someone asked, "About how much does a baseball weigh?" Explain your choice.

Answers

Answer:

See explanation

Step-by-step explanation:

If all the ten balls weigh 1,417.4 grams

Then 1 ball weighs 1,417.4 grams/10 = 141.74

To the nearest tenth = 141.7

To the nearest gram= 142

If someone asks me the weight of one ball I will give the answer as 141.7 because it contains exactly the same number of decimal points as we have in the question.

What is a rule for

h

′
(
x
)

h
′
(x) space, h, prime, left parenthesis, x, right parenthesis, space if

h
(
x
)
=
−
1
x

h(x)=
sin
−1
x

Answers

Answer:

Step-by-step explanation:f(h(x))= 2x -21

f(x)= x^3 - 6

h(x)=\sqrt[3]{2x-15}

WE need to find f(h(x)), use composition of functions

Plug in h(x)

f(h(x))=f(\sqrt[3]{2x-15})

Now we plug in f(x) in f(x)

f(h(x))=f(\sqrt[3]{2x-15})=(\sqrt[3]{2x-15})^3 - 6

cube and cube root will get cancelled

f(h(x))= 2x-15 -6= 2 x-21

please help I only have about a few minutes!
Which equation best models the relationship shown in the table?

Answers

Answer:

i want to say the answer is C, i'm sorry if its incorrect, but i'm 50/50 that its C

3. Rectangle ABCD is shown on the coordinate grid below.
у
10
8 units
12 units
- 10 -8
X
9 units
D
o
7 units

Which is closest to the length of diagonal
AC?

Answers

Answer:

A. 8 units

Step-by-step explanation:

Coordinates of A = (-2, -2)

Coordinates of C = (5, 2)

Use distance formula, [tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex] to calculate the length of diagonal [tex] \overline{AC} [/tex].

Let,

[tex] A(-2, -2) = (x_1, y_1) [/tex]

[tex] C(5, 2) = (x_2, y_2) [/tex]

[tex] d = \sqrt{(5 -(-2))^2 + (2 -(-2))^2} [/tex]

[tex] d = \sqrt{(7)^2 + (4)^2} [/tex]

[tex] d = \sqrt{49 + 16} = \sqrt{65} [/tex]

[tex] d = 8.1 [/tex] (nearest tenth)

Therefore, the closest to the length of diagonal [tex] \overline{AC} = 8 units [/tex]

Graph the line.
y=-5x+4
15 points

Answers

Answer:

go up 4 on the y axis and then go up five and to the left 1. Also go to desmos and it will answer all out your graphing question.

Step-by-step explanation:

Brainliest pls

Put a point on the 4 in the y- axis, then go down 5 times and 1 time to the right (put a point) and go to the point you start(4) and go up 5 times and 1 time to the left( put another point) and you have the line.

Hope this helps :D

A 9 pound bag of brown rice cost 40. 32 what is the price per ounce

Answers

Answer:

price per ounce: $4.48

Step-by-step explanation:

divide 40.32 by 9

Answer:

0.28

Step-by-step explanation:

9 pound = 144 ounce

40.32 / 144 = 0.28

Find V. 10 points plz.

Answers

Answer:

v = 60 yards

Step-by-step explanation:

In the similar triangles, their corresponding sides are proportional which means they have equal ratios

In triangles IHG and FHJ

∵ Δ IHG ≈ FHJ

∵ Side IH is corresponding to side FH

∵ Side HG is corresponding to side HJ

∵ Side IG is corresponding to side FJ

→ Their ratios are equal

∴ [tex]\frac{IH}{FH}[/tex] = [tex]\frac{HG}{HJ}[/tex] = [tex]\frac{IG}{FJ}[/tex]

∵ IH = 54 yards and FH = 72 yards

∵ IG = v and FJ = 80 yards

→ Substitute them in the first and last ratios above

∴ [tex]\frac{54}{72}[/tex] = [tex]\frac{v}{80}[/tex]

→ By using cross multiplication

∴ v × 72 = 80 × 54

∴ 72v = 4320

→ Divide both sides by 72

∴ v = 60 yards

Circle Q has a circumference of approximately 50 centimeters. Circle Q with diameter d is shown. What is the approximate length of the diameter, d? Use 3.14 for . Round to the nearest tenth of a centimeter. 4.0 centimeters 8.0 centimeters 15.9 centimeters 31.8 centimeters

Answers

Answer:

The answer is 15.9 centimeters. If you work backward with the formula 2pir = circumphrence, you get diameter *pi = 50. To find diameter, you divide 50 by pi and the answer is 15.9 centimeters.

Step-by-step explanation:

The diameter to the nearest tenth of a centimeter is mathematically given as

31.8cm, option D

What is the diameter?

Question Parameters:

Circle Q has a circumference of approximately 50 centimeters.

Generally, the equation for the circumference is mathematically given as

C=2\pir

Therefore

r=C/ \pi

r=50/3.14

r=15.9cm

Therefore,

d=2r

d=2*15.9

d=31.847

In conclusion, the diameter to the nearest tenth of a centimeter. is

31.8cm

Answers

4- 189 feet
5- 7 days
6- 40 ounces
7- 2 meters
8- 240 seconds
9- 11 lbs

Which statement is true? The equation –3|2x + 1.2| = –1 has no solution. The equation 3.5|6x – 2| = 3.5 has one solution. The equation 5|–3.1x + 6.9| = –3.5 has two solutions. The equation –0.3|3 + 8x| = 0.9 has no solution.

Answers

Answer:

-.3|3+8x|=.9 has no solution

Step-by-step explanation:

There was not outcome for x when you solve it

Answer:

Step-by-step explanation:

just took the quiz and got it right :)

The system of inequalities in the graph represents the change in an account, y, depending on the days delinquent, x. On a coordinate plane, 2 dashed straight lines are shown. The first line has a positive slope and goes through (negative 2, negative 2) and (0, 0). Everything to the right of the line is shaded. The second line has a negative slope and goes through (negative 2, 2) and (0, 0). Everything to the left of the line is shaded. Which symbol could be written in both circles in order to represent this system algebraically? y Circle x y Circle –x ≤ ≥

Answers

Answer:

C.<

Step-by-step explanation:

got it wrong on the exam review and it told me the right answer after.

Answer:

It is C. <

Step-by-step explanation:

edge 2021

The function y = 3x + 42 models the average number of dogs at an animal shelter, where x is the number of days after July 1. The
function y = 4x + 7 models the average number of cats at the animal shelter, where x is the number of days after July 1. After how many
days is the average number of cats and dogs at the shelter the same?
A. 35 days
B. 49 days
C. 7 days
D. 5 days

Answers

The answer is b 49 days

help
me
do
this
im
about
to
fail

Answers

Answer:

4.89 the rounding of it is 5.00,

Area=(22 over 7) x5^2

=78.57cm^2

Hope that helps

How do I solve for the missing angle?!
And please include explanations on how you got the answer

Answers

Answer:

75°

Step-by-step explanation:

In triangle FBG, one angle is 36. That means the other two must total 180-36=144. Assigning each one 72, their supplementary angle on the interior of the pentagon would be 108.

In triangle JDI, one angle is 39. That means the other two must total 180-39=141. Assigning each one 70.5, their supplementary angle on the interior of the pentagon would be 109.5

We now have 4 of the interior angles. Pentagons have an interior total of 540. 540-108-108-109.5-109.5=105

x is the supplement of 105. 180-105=75

Please help asap!
i will give brainliest :)

Answers

Answer:

192

Step-by-step explanation:

so basically when a problem like this is given out and you do not understand the question or just don't want to the best thing you can do is pick B

Give the equation of the line, perpendicular to the line with equation y=2x+1, that passes
through the point (8,-2)

Answers

Answer:

y=-1/2x+2

Explanation:

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