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3 years ago

Use equivalent ratios to find unknown value plz halp!!!!

Mathematics

2 answers:

iogann1982 [59]3 years ago

7 0

Answer:

Step-by-step explanation:

It might be 21/30 , hope it helps though :)

GrogVix [38]3 years ago

7 0

Answer:

21 is the un known value.

Step-by-step explanation:

10 times 3=30

7 times 3 = 21

so 21/30 is your answer.

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Can anyone help me solve this?

Alecsey [184]

Answer:

Step-by-step explanation:

$(\sqrt{z} +\sqrt{22})(\sqrt{z} -\sqrt{22})=35$

Subtract both sides from 35

$(\sqrt{z}+\sqrt{22} (\sqrt{z} -\sqrt{22})-35=35-35$

Simplify:

$(\sqrt{z})^{2} -57=0$

Factor $(\sqrt{z})^{2} -57: (\sqrt{z}+\sqrt{57}) (\sqrt{z}-\sqrt{57})$ =0

$\sqrt{z} +\sqrt{57}=0 or \sqrt{z} -\sqrt{57}=0$

$\sqrt{z} +\sqrt{57} =0: No Solution for Z$

$\sqrt{z} -\sqrt{57} =0: z=57$

Your answer will be z=57

and No solution

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2 years ago

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NikAS [45]

Answer:

9=-1=?

Step-by-step explanation:

What is the question. Do you want us to evaluate it?

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2 years ago

What’s is the greatest number that can be made using the numbers 5, 3, 1, 4, 7

umka21 [38]

Hey there,

Answer: 75,431

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3 years ago

Find the mean of these numbers : 35,42,41,32,30

abruzzese [7]

Answer:

156

Step-by-step explanation:

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Rom4ik [11]

Answer:

The discount is $0.8d.

Step-by-step explanation:

Given that,

The original cost of Tamara's purchase is d dollars.

Tamara uses a coupon to save 20% off her purchase at the bookstore.

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Discount is applied to the original cost.

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2 years ago

Use equivalent ratios to find unknown value plz halp!!!!​

Use equivalent ratios to find unknown value plz halp!!!!