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stellarik [79]
2 years ago
8

I need the answer asap. Pls help

Mathematics
1 answer:
Makovka662 [10]2 years ago
5 0

Answer:

-1/7

Step-by-step explanation:

-3/5(2/7)+4/35-3/10(2/7)

-3/5(2/7)+4/35-3/10(1/7)

-6/35+4/35-3/5(1/7)

-6/35+4/35-3/35

-1/7

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Mira has breakfast at a restaurant. She leaves a 20% tip of $1.80.
Effectus [21]

Answer:

36 cents

Step-by-step explanation:

3 0
2 years ago
Please help with answer!
Ghella [55]

Answer:

0.12 x (x + 3000) = 4200

equation for her salary last year : last year's salary = (4200 / 0.12) - 3000

$32,000

Step-by-step explanation:

Let x = last year's salary

this year's salary = 3000 + x

this equation can be used to determine how much she saved this year = 0.12 x (x + 3000) = 4200

to find last year's salary, make x the subject of the formula

4200 / 0.12 - 3000 = x

x = $32,000

8 0
3 years ago
True or False:
lara [203]
The answer would be true.
6 0
3 years ago
9: Part A The diameter of a circle is 63 centimeters. ​Find its circumference. ​Use π=3.14. ​ A 31.5 centimeters B 98.91 centime
BaLLatris [955]
Part A:
The circumference of the circle is 197.92.

Explanation:
The formula for circumference of a circle is C=2 πr. If you insert the numbers, it would be C=2 x 3.14 x 31.5. Hence, the answer is 197.92.

Part B:
The area is 3117.25 square cm.

Explanation:
The formula for area of a circle is A= πr ². Inserting the numbers, it is A=3.14 x 31.5 ². Therefore the answer is 3117.25 cm ².
6 0
3 years ago
Find the total area of the solid figure. <br><br> 60 sq. in.<br> 78 sq. in.<br> 90 sq. in.
seraphim [82]

Answer:

245.04

Step-by-step explanation:

The equation to a cylinder for area is A=2πrh+2πr^2

Fill in and solve.

A=2(3.14)(3)(10)+2(3.14)(3)^2

So using PEMDAS you get the answer 245.04

3 0
3 years ago
Read 2 more answers
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