2 years ago

WILL MARK BRAINLIST please help with #12

Mathematics

1 answer:

goldfiish [28.3K]2 years ago

8 0

Y=2x
you can use desmos graphing calculator for help

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Which of the following ordered pairs make this equation true? Y = 2x - 7 A. (1,9) B. (-3, 4) C. (4,1) D. (-1, 5)

gregori [183]

Answer:

(4,1)

Step-by-step explanation:

Using substitution you can determine that 2*4-7 is in fact equal to 1

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2 years ago

A sales clerk sold 3 times as many T-shirts as hats last week. The number of belts she sold was 15 more than 1/4 the number of h

artcher [175]

Answer:

777 fewer belts

Step-by-step explanation:

288/4 = 72

72 + 15 = 87

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2 years ago

Combine like terms and simplify 4r - 6 - 2r + 5

murzikaleks [220]

C. 10r-3

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4 0

2 years ago

I need help my question is -2 less than or equal to 3x-2 <10

Kisachek [45]

A n s w e r:

0 ≤ x < 4

4 0

3 years ago

tyra has 12 2/3 cups of sugar. if r is the amount of sugar needed for one batch of cookies, the expression 12 2/3 ÷ r can be use

olga nikolaevna [1]

ANSWER

She can make 19 batches of oatmeal.

EXPLANATION

First we can change the mixed number into an improper fraction:

$12\frac{2}{3}=12+\frac{2}{3}=\frac{12\cdot3}{3}+\frac{2}{3}=\frac{36}{3}+\frac{2}{3}=\frac{38}{3}$

In this problem, r = 2/3. The division is:

$12\frac{2}{3}\div r=\frac{38}{3}\div\frac{2}{3}$

Using the KFC rule:

$\frac{38}{3}\div\frac{2}{3}=\frac{38}{3}\times\frac{3}{2}$

Solving we can see that the denominator of the first fraction can be simpliied with the numerator of the second fraction:

$\frac{38}{3}\times\frac{3}{2}=\frac{38}{1}\times\frac{1}{2}=\frac{38}{2}=19$

Tyra can make 19 batches of oatmeal with 12 2/3 cups of sugar.

6 0

1 year ago