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3 years ago

SOMEONE HELP ME [20 POINTS]

Mathematics

2 answers:

KIM [24]3 years ago

7 0

What You Want To Help You ?

PtichkaEL [24]3 years ago

3 0

What do you need help with?

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Christine bought 4 sandwiches and 5 bowls of soup, spending $38.50.Adam spent $47.25 to buy three sandwiches and nine bowls of s

ikadub [295]

Sandwiches are $5.25 Bowls are $3.50

4x+5y=38.50
3x+9y=47.25

4 0

3 years ago

The perimeter of a rectangle is 32 inches. The length is 1 foot. What is the width of the rectangle in inches? A. 4 inches B. 10

alekssr [168]

Answer:

A. 4 inches

Step-by-step explanation:

Applying,

P = 2(L+W)............. Equation 1

Where P = Perimter of the rectangle, L = Length of the rectangle, W = width of the rectangle.

make W the subject of the equation

W = (P/2)-L............ Equation 2

From the question,

Given: P = 32 inches, L = 1 foot (Convert from Foot to inches), L = 12 inches

Substitute these values into equation 2

W = (32/2)-12

W = 16-12

W = 4 inches.

Hence the right option is A.

6 0

3 years ago

Changle. Show all work. Round each length to the nearest tenth and each angle to the

Sedaia [141]

Answer:

Part 1) $BC=12.2\ units$

Part 2) $m\angle A=55^o$

Part 3) $m\angle C=35^o$

Step-by-step explanation:

Part 1) Find AC

we know that

In the right triangle ABC of the figure

Applying the Pythagorean Theorem

$AC^2=AB^2+BC^2$

substitute the given values

$AC^2=7^2+10^2$

$AC^2=149\\AC=12.2\ units$

Part 2) Find the measure of angle A

we know that

In the right triangle ABC

$tan(A)=\frac{BC}{AB}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the values

$tan(A)=\frac{10}{7}$

using a calculator

$m\angle A=tan^{-1}(\frac{10}{7})=55^o$

Part 3) Find the measure of angle C

we know that

In the right triangle ABC

$m\angle A+m\angle C=90^o$ ----> by complementary angles

substitute the given value

$55^o+m\angle C=90^o$

$m\angle C=90^o-55^o=35^o$

8 0

2 years ago

Camille had $275 in her checking account . she deposited $812 and wrote checks $75, $60, and $48. how much did she have in the a

Elenna [48]

She would have $904. 275 + 812= 1087. 75 + 60 + 48= 183. 1087 - 183 = 904. Check the math to make sure, I did it in my head.

3 0

3 years ago

I NEED HELP ASAP WITH A LOT OF QUESTION!!!!

frozen [14]

Answer:

Step-by-step explanation:

8 0

2 years ago