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2 years ago

15

PRACTICE

1 answer:

Leviafan [203]2 years ago

8 0

Answers are:

16.
-1 - (-4) = 3

17.
-1-1/3 - (-4) = 2-2/3

18.
2 - (-1) = 3

19.
3-1/2 - (-1) = 4-1/2

20.
3-1/2 - 2 .= 1-1/2

21.
3-1/2 - (-1-1/3) = 4-5/6

Step by step: I took one point and subtracted the second point to get the length of each segment. You could also look at the ruler and count from one point to the other.

Remember when you subtract a negative, the two negatives become a positive

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The graph of y = f(x) is shown below. What are all of the real solutions of f(x) = 0?

jasenka [17]

Answer:

-8 and -2

Step-by-step explanation:

f(x) basically means y and at the y value 0 the x values are -8 and -2 (also known as the roots of the function)

5 0

3 years ago

Which equation results from adding the equations in this system?

Diano4ka-milaya [45]

Answer:

D. - 5x = - 10

Step-by-step explanation:

<u>Given equations:</u>

-8x+8y = 8
3x-8y=-18

<u>Add together:</u>

-8x + 8y + 3x - 8y = 8 - 18
- 5x = - 10

Correct option is D

7 0

3 years ago

Ryker wants a new car. The dealership offers him a loan at 9% annual interest for 6 years. If Ryker wants to do some calculation

Contact [7]

The monthly interest rate is 0.75%

<u>Step-by-step explanation:</u>

The rate of interest= 9%

Total time = 6years

Interest rate per month = 9/12

= 0.75%

Monthly payment =cost of the car + 0.75% of cost of car

Interest per month is 0.75%

3 0

3 years ago

3 ⅕ -⅔ divided by 2 ⅘

spin [16.1K]

Answer:

160/196

Step-by-step explanation:

it would be easier if you converted all fractions to improper fractions

so 3 1/5 would equal 16/5 and 2 4/5 would equal to 14/5

$\frac{14}{5} - \frac{2}{3}$ : to solve this you would need the same common denomenator,

to do this you can multiply 5 and 3 by something to make the lowest common denominator, which would be 15

thus

multiplying first fraction by 3 and the second by 5

42/15 - 10/15 = 32/15

now 32/15 divided by 14/5

the rule for dividing fractions, is flipping the fraction which you will be using to divide, and then multiplying it to the first fraction:

$\frac{32}{14}$ multiplied by $\frac{5}{14}$

thus, answer is 160/196

8 0

3 years ago

Spencer made a quilt for his cousin's doll. The quilt had a 7x7 array of different color square patches. If each patch is 1 3/4

Damm [24]

Answer:

$\frac{2401}{16}$ square inches

Step-by-step explanation:

Given:

The quilt made by Spencer had a 7×7 array of different color square patches such that each patch is $1\frac{3}{4}$ in long.

To find: the area of the whole quilt

Solution:

Side of each quilt = $7(\frac{3}{4})=7(\frac{7}{4})=\frac{49}{4}$

Quilt is in the form of a square such that area of square is given by $(side)^2$

Therefore, area of quilt = $(side)^2=(\frac{49}{4})^2 =\frac{2401}{16}$ square inches

3 0

3 years ago