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3 years ago

I Need The Answer Plz!!!

Mathematics

1 answer:

Sladkaya [172]3 years ago

8 0

This is the answer : plz mark brainlyest

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I really need help with this problem?

trasher [3.6K]

7 cm, it’s a step by step equation

3 0

3 years ago

Jamie kept track of the total hours and minutes she worked this week at the local health food store.

ddd [48]

1 hour = 60 minutes.

Convert the minutes to decimals by diving by 60

30/60 = 0.5

2 hours and 30 minutes = 2.5 hours

45/60 = 0.75

5 hours 45 minutes = 5.75 hours

15/50 = 0.25

3 hours 15 minutes = 3.25 hours

Ow add all the hours:

2.5 + 5 + 5.75 + 3.25 = 16.5 hours

Answer: B. 16.50

7 0

3 years ago

The radius of the base of a cylinder is 28 cm and its height is 48 cm. Find the surface area of the cylinder in terms of π.

yarga [219]

Area of the bases

2πr2=2π∗784=1568π

circumference of base

2πr=56π

extension of the height

2πr∗h=56π∗48=2688π

bases plus none base surface is total surface

1568π+2688π=4256π

4 0

4 years ago

Read 2 more answers

Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi on 19 gal

nika2105 [10]

Answer:

7 gallons were used for city driving.

Step-by-step explanation:

I am going to solve this question by a system of equations.

I am going to say that:

x is the number of gallons driven in the city.

y is the number of gallons driven in the highway.

19 gal of gas

This means that $x + y = 19$

Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi.

This means that $13.2x + 25.3y = 396$

How many of the gallons (to the nearest gallon) were used for city driving?

This is x

From the first equation, i will have

$y = 19 - x$

Replacing in the second equation

$13.2x + 25.3y = 396$

$13.2x + 25.3(19 - x) = 396$

$13.2x - 25.3x = 396 - 480,7$

$12.1x = 84.7$

$x = \frac{84.7}{12.1}$

$x = 7$

7 gallons were used for city driving.

5 0

3 years ago

Which equation is the same as “f of x equals the quantity one-fourth x plus nine all over ten”

Sergio [31]

F(x)=((1/4)x+9)/10 Because f of x = f(x), equals the quantity means =, one-fourth x is just (1/4)x, plus 9 is + 9, and all over ten means take everything previously said over ten.

4 0

3 years ago