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3 years ago

Could someone answer these problems ?

Mathematics

2 answers:

max2010maxim [7]3 years ago

7 0

Answer:

8. $18.11

10. 71

Step-by-step explanation:

25.63 - 7.52 = 18.11

90 - 19 = She is old. JK

90 - 19 = 71

Lelu [443]3 years ago

6 0

Answer:

She received $18.11

Step-by-step explanation:

25.63-7.52= $18.11

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Find two mixed numbers so that the sum is 15 3/10 and the difference is 8 5/10

Juliette [100K]

11 9/10 and 3 2/5

$\left \{ {{ 11\frac{9}{10}+3\frac{2}{5}=15\frac{3}{10}} \atop { 11\frac{9}{10}-3\frac{2}{5}=8\frac{5}{10}}} \right.$

To solve for this, you can create a series of two equations
$\left \{ {{y+x=15 \frac{3}{10} } \atop {y-x= 8\frac{5}{10} }} \right.$

After that, you solve one of the equations for x and plug it into the other equation.
$\left \{ {{x=15 \frac{3}{10}-y } \atop {y-x= 8\frac{5}{10} }} \right.$

${2y-15 \frac{3}{10}= 8\frac{5}{10}$

Then, solve for variable y
${2y=23 \frac{8}{10}$
${y=11\frac{9}{10}$

Then, you plug in this value for y into one of the original equations

$11\frac{9}{10}+x=15 \frac{3}{10}$

$x=15 \frac{3}{10} -11\frac{9}{10}$

$x=3 \frac{2}{5}$

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3 years ago

Use the equation below to answer the following questions.

Masteriza [31]

the answer is

2d=64

d=32

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3 years ago

Which distance is about 3 x 10-5 meters?

tino4ka555 [31]

Answer:

I think that c is the correct answer

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2 years ago

Item 20<br> Factor 42x+28yusing the GCF.

Yanka [14]

So 7×6=42 and 7×4=28 GCF is 7 so 7x(6x+4)

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2 years ago

During the spring, when the snow and ice melt in the Inka Binka Mountains, it causes the Habooka River to rise. If the river ris

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Answer:

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Step-by-step explanation:

Since there are 7 days in one week, 42 cm divided by 7 days will equal to the answer 6 centimeters per day.

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2 years ago