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2 years ago

Pls answer quick. Lol

Mathematics

1 answer:

LUCKY_DIMON [66]2 years ago

5 0

Answer:

Step-by-step explanation:

120 is going to be 45 + x.

120 - 45 = x

120 - 45 = 75.

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5y-8=x<br> 3y-4=x<br><br> please need help

jarptica [38.1K]

First, you set up the equation which would be 5y-8=3y-4.
-3y -3y
2y-8= -4
+8 +8
2y=4
divide by 2
y=2

7 0

3 years ago

Is - 1 half n + 1 whole 1 half + 3 - n equivalent to 3

gavmur [86]

Yes. It is equivalent to 3. Combine like terms

7 0

2 years ago

Se cocina una pizza de 20 cm de radio, en su interior se coloca al azar 12 piezas de salami

Furkat [3]

Answer:

The area of cheese is 388π cm.

Step-by-step explanation:

Given that,

Radius of pizza = 20 cm

Number of pieces = 12

Radius of circle = 1 cm

We need to calculate the area of pizza

Using formula of area

$A=\pi\times r^2$

Put the value into the formula

$A=\pi\times20^2$

$A=400\pi\ cm^2$

We need to calculate the area of circle

Using formula of area

$A'=\pi\times r^2$

Put the value into the formula

$A'=\pi\times1^2$

$A'=\pi\ cm^2$

Now, we multiply the result by 12 because they are 12 salamis.

So. the area of salamis will be

$A'=12\pi\ cm^2$

We need to calculate the area of cheese

The total area of the pizza and subtract the area of the salamis

$A''=A-A'$

Put the value in to the formula

$A''=400\pi-12\pi$

$A=388\pi\ cm^2$

Hence, The area of cheese is 388π cm.

6 0

3 years ago

7th grade math help lol

ELEN [110]

Step-by-step explanation:

F and C, I think those are the only ones

7 0

3 years ago

The area of triangle ABC is 50 square units. What is the length of CD?

My name is Ann [436]

The triangle spilts into two 45-45-90 triangle. Because of that, the short leg and long leg with be the same length. It gives the hypotenuse, 10. Divided 10 by √2 which is 5 √2. The length of CD is 5 √2

7 0

2 years ago