MATHEMATICS
MIDDLE SCHOOL

Answer:

Answer:

x=4,-1

Step-by-step explanation:

Factor and set each factor equal to zero.

HIGH SCHOOL

Which two-dimensional figure could be a cross section of a rectangular pyramid that has been intersected by a plane parallel to its base? A. Rectangle

B. Triangle

C. Hexagon

D. Trapezoid

The correct answer is option D. Trapezoid.

HIGH SCHOOL

Mika drew this shape. What is the name of the shape Mika drew? Mika then drew a shape that has 2 fewer sides. What is the name of the shape? EnVisionmath 3rd grade question

Answer:

I think it is a Triangle

Answer:

triangle bangle

Step-by-step explanation:

MIDDLE SCHOOL

Denise bought a t-shirt at the sale price of $25 the original cost of the T-shirt was $40 what percent represents the discount that Denise received when buying the T-shirt

Answer:

37.50%

Step-by-step explanation:

Use the formula: Old Value minus New Value (in absolute value bars) divided by Old Value times 100

New Value = $25 / Old Value = $40

$40 - $25 = $15

$15 divided by $40 is 0.375

0.375 times 100 (0.375 x 100) is 37.50

HIGH SCHOOL

How to solve 0.01x+0.07y=0.22 and 0.03x-0.05y=0.14 by substitution

0.01x + 0.07y = 0.22

0.03x -0.05y = 0.14

x + 7y = 22

3x - 5y = 14

x = 22 -7y

3*(22-7y) -5y =14

66 - 21y -5y =14

-26y = - 52

y =2

x + 14 = 22

x= 8

0.03x -0.05y = 0.14

x + 7y = 22

3x - 5y = 14

x = 22 -7y

3*(22-7y) -5y =14

66 - 21y -5y =14

-26y = - 52

y =2

x + 14 = 22

x= 8

MIDDLE SCHOOL

A boat as a buoyant force of 260 N and weight of 80N what is the maximum weight capacity that is allowed on the boat to allow it to continue to float

180 N

Step by Step Explanation :

Step 1 :

Given that the buoyant force of the boat is 260 N

and the boat's weight is 80 N

We have to find the maximum weight capacity of the boat so that it continues to float.

The boat would float when the total of the weight of boat and the load it carries do not exceed the buoyant force.

Step 2 :

The weight capacity of the boat is therefore 260 N - 80 N = 180 N

Hence the boat can carry a weight of 180 N to continue to float

Answer:

The maximum weight capacity will be less than 180 N

Step-by-step explanation:

According to the Archimedes principle, an object floats in the fluid if its buoyant force is greater than the weight of the object.

Here the buoyant force is 260 N so weight up to < 260, the boat will float.

Let the maximum weight capacity be x.

x + 80 < 260

or, x + 80 - 80 < 260 - 80

or, x < 180

So the maximum allowed weight will be less than 180 N.

MIDDLE SCHOOL

Terrisita sang for 2 hours. Then she went swimming for 3 hours. Estimate the amount of time she spent singing and swimming.

o

A. 6 hours

C. 8 hours

B. 5 hours

D. 7 hours

Answer:

3 plus 2 is 5 so the answer is 5 hours

MIDDLE SCHOOL

Solve for y: 4y - x = 64

y 4y=64 4

y

=

64 Divide each term in 4

y

=

64 by 4 . 4

y 4 =

64 4

Reduce the expression by cancelling the common factors.

Tap for more steps... y

=

64 4 Divide 64 by 4

. y

=

16

Answer:

y=16

Step-by-step explanation:

HIGH SCHOOL

What is the solution to the system of equations? -3 x - 4y - 3z= -7

, 2x - 6 y + 2z= 3,

5 x - 2y + 5 Z=9

Answers:

A, (5, -2, 7)

B, (-5, 2, 7,)

C, (5,2,-7)

D, No solution

Solution

Step 1: Isolate the variable x and plug in the values of x in the second and third equations.

Step 2: Isolate variable y and solve for y.

We get the value of y = 5/26

When we substitute the value of y , 1 = 0 which is not true.

Therefore, this system has No Solution.

Answer: No solution

MIDDLE SCHOOL

A basketball team scored an average of 52 points in each of 15 games. Based on the average, how many points did the team score in all? Please help it’s for my son homework

The total number of points scored by the basketball team in 15 games based on their average score of 52 points in each of these 15 games is 780.

What is the average value of data?The average value of all observations is given as the sum of all observations/the total number of observations, that is:

where , represents i-th observations i running from 1 to N, and N represents the number of observations.

How to solve the question?In the question, we are given that a basketball team scored an average of 52 points in each of 15 games.

We are asked to find the total number of points scored by the basketball team, based on their average.

We know that average = the sum of all observations/the total number of observations.

Hence, we can say that:

52 = Total points scored in 15 games/15 {Since 52 is the average number of points}.

or, Total points scored in 15 games = 52 * 15 = 780.

Therefore, the total number of points scored by the basketball team in 15 games based on their average score of 52 points in each of these 15 games is 780.

Learn more about averages at

brainly.com/question/20118982

#SPJ2

Simple you do 52 times 15 which is 780