2 years ago

Change 8.6 x 10^-4 to decimal notation

Mathematics

1 answer:

Bezzdna [24]2 years ago

3 0

Answer: 0.0086

Step-by-step explanation:

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Write a unit rate for: 12 pounds for $17.88.

Vika [28.1K]

Answer:

.67

Step-by-step explanation:

12/17.88=.67

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3 years ago

First five common multiples of 7and 20

gulaghasi [49]

The first 5 Multiples of 7 are 35, 70, 105, 140, 175
The first 5 Multiples of 20 are: 20, 40, 60, 80, 100

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3 years ago

What is the answer to 3x –7 = -16

Anni [7]

Answer:

x = -3

Step-by-step explanation:

3x –7 = -16

3x = -16 + 7

3x = -9

x = -3

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2 years ago

Read 2 more answers

The difference between a number squared and 10 is 71 just translate please don't solve.

AnnyKZ [126]

Step-by-step explanation:

Things I notice about this problem:

"Difference" indicates subtraction.

"Is" means "equals".

When a problem simply says "a number," I replace it with a variable.

It is written out like this: $x^{2} - 10 = 71$ .

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2 years ago

Mrs. Lin is sewing costumes for her grandchildren. She is making three lion costumes, one zebra costume, and two bear costumes.

stepladder [879]

Answer:

$12\frac{1}{8}\ yd$

Step-by-step explanation:

we know that

The total fabric that Mrs. Lin needs is equal to

$3(1\frac{2}{3})+2\frac{5}{8}+2(2\frac{1}{4})$

Convert mixed number to an improper fraction

$1\frac{2}{3}=1+\frac{2}{3}=\frac{5}{3}$

$2\frac{5}{8}=2+\frac{5}{8}=\frac{21}{8}$

$2\frac{1}{4}=2+\frac{1}{4}=\frac{9}{4}$

substitute

$3(\frac{5}{3})+\frac{21}{8}+2(\frac{9}{4})$

$5+\frac{21}{8}+\frac{9}{2}$

$\frac{40+21+36}{8}=\frac{97}{8}\ yd$

Convert to mixed number

$\frac{97}{8}\ yd= \frac{96}{8}+\frac{1}{8}=12\frac{1}{8}\ yd$

4 0

3 years ago