Factoring polynomial 40a2 -32a

Jamaal has $67.59 in his bank account. He goes to the mall and buys the following:

hjlf

Answer:

about 74

Step-by-step explanation:

he is about -13.58 in debt i belive so 10$ for the negative charge plus the in dept money and the 50 they would need around $74.

double check with a calculator

3 0

3 years ago

A. 12

kondor19780726 [428]

Tree casts a shadow 30 feet long. A MHS student standing near the tree casts a shadow 9 feet long. The student is 6 feet tall. What is the height of the tree? Show all work

Answer:

Option D

The height of tree is 20 feet tall

Solution:

From given question,

Shadow of tree = 30 feet

Height of tree = ?

Height of student = 6 feet

Shadow of student = 9 feet

We have to find the height of tree

We can solve the sum by proportion

$\frac{\text{height of tree}}{\text{shadow of tree}} = \frac{\text{height of student}}{\text{shadow of tree}}$

This forms a proportion and we can solve the sum by cross multiplying

$\frac{\text{height of tree}}{30} = \frac{6}{9}\\\\\text{height of tree} = 30 \times \frac{6}{9} = 30 \times \frac{2}{3}\\\\\text{ height of tree } = 10 \times 2 = 20$

Thus height of tree is 20 feet tall

5 0

3 years ago

A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Each small box has 100 nails an

ExtremeBDS [4]

Answer:

The system 150x+400y=1950 and x = y+2 could be used to determine the number of small boxes and large boxes ordered where x represents the number of small boxes and y represent the number of large boxes.

Step-by-step explanation:

Given,

Number of nails in small box = 150 nails

Number of nails in large box = 400 nails

Total nails in ordered boxes = 1950 nails

Let,

x be the number of small boxes ordered.

y be the number of large boxes ordered.

According to given statement;

150x+400y=1950 Eqn 1

The contractor bought 2 more small boxes than large boxes

x = y+2 Eqn 2

The system 150x+400y=1950 and x = y+2 could be used to determine the number of small boxes and large boxes ordered where x represents the number of small boxes and y represent the number of large boxes.

Step-by-step explanation:

6 0

4 years ago

Change the word phrase to an algebraic expression. Use x to represent the number.

vladimir2022 [97]

The required algebraic expression will be " $7(x-5)$ ". A complete solution is provided below.