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3 years ago

PLZ HELP I NEED TO PASS MATH LOL, What is the value of the expression (−10)(−7)? Enter your answer in the box.

Mathematics

1 answer:

nikklg [1K]3 years ago

7 0

Two negatives make a positive

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What is the volume of a cone with a radius of 12 and a height of 8?

nadya68 [22]

Answer:

Volume of a cone= $\frac{1}{3} \pi r^{2}h$

= $\frac{1}{3}$ × $\frac{22}{7}$ ×144×8

= $\frac{22}{21}$ ×144×8

=1206.86 $cm^{2}$

Step-by-step explanation:

8 0

3 years ago

Mary Beth has $1500 in a savings account on January 1. She wants to have at least $800 by May 1. She estimates that she can wit

DerKrebs [107]

1500-38.5x > 800
x= Number of weeks

5 0

3 years ago

1. La suma de dos números es 115. El número mayor es dos veces más 22 unidades que el otro. Hallar

Lerok [7]

De acuerdo con un sistema de ecuaciones, tiene-se que los números son 31 y 84.

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En el sistema de ecuaciones, tiene-se que los números son x e y.
Suma de 115, o sea, $x + y = 115$
El número mayor es dos veces más 22 unidades que el otro, o sea, $x = 2y + 22$

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Primero se encuenta el número menor, reemplazando la segunda ecuación en la primera:

$x + y = 115$

$2y + 22 + y = 115$

$3y = 93$

$y = \frac{93}{3}$

$y = 31$

----------------

El número mayor es dado en función de el menor, o sea:

$x = 2y + 22 = 2(31) + 22 = 62 + 22 = 84$

Los números son 31 y 84.

Otro problema resuelto por sistema de ecuaciones es dado en brainly.com/question/24637096

6 0

3 years ago

PLEASE HELP simple geometry problem

vlabodo [156]

Perimeter is adding the 3 sides together. Since both triangles have the same perimeter set both triangles to equal:

(x+3 + x+3 + x+3) = (x+3 + 2x-3 + x)

Simplify each side:

3x+9 = 4x

Subtract 3x from each side:

x=9

5 0

4 years ago

Abes apple orchard plans both green apple trees. This planting will include 21 red apple trees and 18 green apple trees. What is

Paha777 [63]

Answer:

The ratio of green apples to red apples is $\frac{6}{7}$ .

Step-by-step explanation:

Given,

Number of red apples = 21

Number of green apples = 18

We have to find out the ratio of green apples to red apples.

Solution,

For finding the ratio we have to divide the number of green apples to the number of red apples.

So, we can frame the above sentence as;

$Ratio=\frac{\textrm{number of green apples}}{\textrm{number of red apples}}$

Now substituting the values, we get;

$Ratio=\frac{18}{21}=\frac{6}{7}$

Hence The ratio of green apples to red apples is $\frac{6}{7}$ .

3 0

4 years ago