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3 years ago

Can someone please help me i am doing algebra and i am stuck please help me asap 7x+4y=-16

Mathematics

1 answer:

ioda3 years ago

8 0

4y=-16-7x equation 1. substitute equation 1 in given equation. 7x(-16-7x)=-16. -112x-49x=-26

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A recipe calls for 3 cups of sugar to 4 cups of flour.

MA_775_DIABLO [31]

0.75 cups of flour to 1 cup of sugar.

Step-by-step explanation: From the question, we are informed that a recipe calls for 3 cups of flour to 4 cups of sugar and told to calculate the unit rate.

It simply means what we need to calculate much flour to one cup of sugar. This will be:

= 3/4 = 0.75

Therefore, the unit rate will be:

0.75 cups of flour to 1 cup of sugar.

5 0

3 years ago

Please help this is due in 12 mins !!!?!?

MakcuM [25]

Answer: 3p = 1/2
( p + p + p ) = 1/2

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2 years ago

Which is the simplified form of the expression 3(7/5x+4) - 2(3/2 - 5/4x)?

Kruka [31]

Answer:

B. $\frac{67}{10} x + 9$

Step-by-step explanation:

Simplify the expression. Remember to go by the order of operations, or PEMDAS.

1) First, distribute the numbers outside of the set of parentheses to the terms inside the set of parentheses next to them. Then, simplify the fractions.

$3(\frac{7}{5} x + 4) -2 (\frac{3}{2} -\frac{5}{4} x)$

$\frac{21}{5}x + 12 - \frac{6}{2} + \frac{10}{4} x$

$\frac{21}{5} x + 12 - 3 + \frac{10}{4} x$

2) Finally, combine like terms. (This means to add or subtract constants and to add or subtract terms with the same variables.) You may need to convert terms to the same denominator in order to do so easier. Then, reduce the fraction.

$\frac{21}{5} x + 9 + \frac{10}{4}x \\\frac{84}{20}x + \frac{50}{20}x + 9 \\\frac{134}{20}x + 9 \\\frac{67}{10}x + 9$

Thus, the answer is $\frac{67}{10} x + 9$ .

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3 years ago

How many weeks are in 977 days? Round your answer to the nearest tenth ( to one decimal point)

Alika [10]

There are 139.6 weeks is 977 days

6 0

3 years ago

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If y varies directly with x, find the constant of variation with x = 4 and y = -24

olganol [36]

Use the formula y=kx for this equation.
so considering that Y equals -24 then X and K must also equal that number
we already know that X is -4 but we dont know what K is.
so we divide -24 by -4 and get an answer of a positive 6 but the answer is not proven yet.
-4 times 6 is -24 meaning that the answer is 6

6 0

3 years ago

Read 2 more answers