What is the solution(s) to the equation? Use algebra only, no graphing.
(5x + 15)(x - 7) = 0

Answers

Answer 1

Answer:

x = -3, x = 7

Step-by-step explanation:

( 5x + 15 ) ( x - 7 ) = 0

5x + 15 = 0

5x = -15

x = -3

x - 7 = 0

x = 7

Answer 2

Answer:

x=−3 or x=7

Step-by-step explanation:

(5x+15)(x-7)=0

5x2−20x−105=0

5(x+3)(x−7)=0

x+3=0 or x−7=0

x=−3 or x=7


Related Questions

I need help with number 3 and 4 please

Answers

Step-by-step explanation:

x 1 2 3 4 5 6

y 4 8 12 16 20 24

4

x 1 2 3 4 5. 6

y 2 7 12 17. 22. 27

Torrance is shopping for a school party. His donation to the party is snack bags and juice boxes. Snack bags come in packages of 12, and juice boxes come in a package of 10 . What is the fewest number of packages of each product Torrance must purchase so that he has the same number of snack bags and juice boxes?

Answers

Answer:

5 snack bags and 6 juice boxes.

Step-by-step explanation:

The least common multiple of 12 and 10 is 60. If he buys 5 snack bags and 6 juice boxes, he will have 60 of each. 12 goes into 60 5 times, and 10 goes into 60 6 times.

An item on sale costs 65% of the original price. The original price was $15. Find the sale price.

Answers

Answer:

$9.75

Step-by-step explanation:

65% of 15 is 9.75

Hope this helps∞<3

Let me know if it right or wrong.

Answer:

$9.75

Step-by-step explanation:

To find the sale price, you multiply the sale percent by the original price.  For this problem, it would be 0.65 * 15, which equals $9.75.

(If you didn't already know, you get the decimal version of a percent by moving the decimal at the end two places to the left.)

Which one is correct? Please hurry :)

Answers

Answer:

A

Step-by-step explanation:

Simplify the expression and enter your answer below.

(15^1/5)^5

Answers

Answer:

15^1 or just 15

Step-by-step explanation:

(15^1/5)^5

If there is a parenthesees seperating powers you can times the two numbers.

So you take 1/5 and times by 5

After this you get 15^1 and that would be 15

What is the unit rate of $8.75 for 2.5 gallons?

Answers

Answer:

21.875

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

$8.75/2.5

$8.75× 2.5= 21.875

2.5×2.5=1

What is f(x) - g(x)
f(x)=x^2 + 2x - 5
g(x)= -3x^2 - 4x + 1

Answers

Answer:

f(x)=(−1,−6)

g(x)=(−2/3,7/3)

Step-by-step explanation:

What are we finding the vertex

Answer:

A. -2x^2-2x-4

Step-by-step explanation:

:D

An order is written for 1200 adult weight 164 pounds and is 5/9 all with a BSA of 1.9 m to the physician ordered o n c o v i n 2 mg / M2 for chemotherapy treatment of a malignant tumor. Oncovin is supplied as 1 mg/ml. What volume should the patient receive per dose?

Answers

Answer:

The volume per dose that the patient should receive is 3.8 ml

Step-by-step explanation:

The physician ordered oncovin 2 mg/m² for chemotherapy treatment of a malignant tumor.

The adult's BSA (Body surface area) = 1.9m²

Hence, the amount of oncovin needed based on his body weight is:

2mg/1 m² = x mg/1.9m²

Cross Multiply

x mg = 2mg × 1.9

x = 3.8mg

We are told , oncovin is supplied:1 mg/ml

Hence:

This means

1 mg = 1 ml

3.8 mg = x ml

Cross Multiply

x ml = 3.8 ml

The volume per dose that the patient should receive is 3.8 ml

Margo estimated 182 divide 5 to be between 30 and 40 which basic facts did she use the photo has the basic facts

Answers

Answer:

Step-by-step explanation:

Margo estimated that 18 is close to 20 and 20/5=4

18 is also close to 15 and 15/5=3

so she figured her answer will be between 30 and 40

Answer:

[tex]15 \div 5[/tex]

Step-by-step explanation:

15 is the closest nuber to 18 making it a better assumption for her.


Triangle A is a right triangle. The hypotenuse is 10”. One side is 8”. Find the other side.

Answers

12.8. is answer by formula

Spenser bought 12 honeycrisp apples for $15.99 from the store. How much did each apple cost?

Answers

Answer:

$1.33

Step-by-step explanation:

Answer:

$ 1.33

Step-by-step explanation:

[x]/[6]=-46 , what is x

Answers

Answer:

Step-by-step explanation:

x/6 = - 46

Multiply by 6 on both sides

x = - 46 x 6

x = - 276

Answer:

x= -276

Step-by-step explanation:

x/6=-46

x= -46(6)

x= -276

i think... :)

If u can guess the number I’m thinking of you will get brainliest. 1-20

Also if u dig a 6 feel hole how deep is that hole?

Answers

about 20 feet deep yessir

im guessing 12

and if you dig a 6 feet deep hole its 6 feet

Below is the graph of linear equation F(x)-2x-4
AL
1. Which point represents the grach's yntercept?
A. Part A C. Point
B. Parte D. Point

2 Which point represents the grach's recept?
A. Porta C. Point
B. Part 3
D. Ponto
1 Which ont represents the grach's 2007
A. Part C. Ponto
B Parts D. Point

Answers

Answer:

1. B. point B.

2. C. point C.

3. C. point C.

Step-by-step explanation:

1. In order to find the graph's y-intercept, we need to locate the point where the line crosses the y-axis. This will always happen at x=0, therefore, the y-intercept is located at point B (0,-4)

2. In order to find the x-intercept, we need to find the point where the line crosses the x-axis. This will generally happen when y=0, so that will be point C (2,0)

3. In order to find the graph's zero, we need to find the point where y=0. In other words, the graph's zero is the point where the function is equal to zero (the x-intercept) so this will br point C again (2,0)

Help ASAP I will give u a lot of points

Answers

The answer is D because the lines were curving at the bottom of the triangle

plsssss pplssss helpppp

Answers

Answer:

Hold on i have to work it out real quick

Step-by-step explanation:

Shannon graphed the system of equations. 7x – 4y= –8 y = y equals StartFraction 3 over 4 EndFraction x minus 3.x – 3 A coordinate grid with 2 lines. The first line passes through (0, negative 3) and (negative 4, negative 6). The second line passes through (0, negative 2) and (negative 4, negative 6). The lines appear to cross at about negative 5 and between negative 6 and negative 8.What of the following best describes the geography English colonists found when they first began to arrive in North America?

Answers

Answer:

its (-5 -5.9)

Step-by-step explanation:

i got id right on edg

**
Please help me out I’m giving you more points! This is really important ❤️ and I’m confused please :))) thank you so very much

Answers

Answer: A,C

Step-by-step explanation: They are facing each other making them interior angles

a statue casts a 40 foot shadow. Mrs. Swift, who is 5 feet 6 inches tall, casts a 4 foot shadow. how tall is the statue?

Answers

Answer:

56 foot

Step-by-step explanation:

5.6inches =4foot

what about 40foot

=40foot *5.6/4foot

= 56 foot

Answer:

shajjababhnamajnahahshssb

Solve for w.
9- w = 224​

Answers

Answer:

-215

Step-by-step explanation:

-w = 215

w = -215

hope this helped

9+(-1)=8 as a subtraction problem

Answers

Answer:

9 - 1 = 8

Step-by-step explanation:

We can simplify the equation by changing 9 +(-1) to 9 - 1, therefore making it a subtraction problem.

rewrite as a simplified fraction what would it be

Answers

Answer:

37/45

Step-by-step explanation:

YEPPP THAT'S ITT DJJSJZJZK

Answer: The answer is 44/50 and the percentage is 88

Step-by-step explanation: Hope my answer helped you! Plz, mark my answer and Thank you!

find the value of a-9 when a = 8

Answers

Answer:

-1

Step-by-step explanation:

if a is 8 plug it in to the problem, and you get 8 - 9 which is -1

Hope this helps!

Answer:

-1

Step-by-step explanation:

Fiteen packs of fruit snacks cost $3. How much do 5 paxks of fruit snack cost?​

Answers

15/3 = 5/x

15x = 15

X = $1

HELPPPP i don’t understand this

Answers

Answer:

60 degrees

Step-by-step explanation:

1. Find angle t. A and T are supplementary angles so both added together should equal 180.  180 - 120 = 60. Angle t is 60 degrees

2. All three angles inside the triangle should add up to 180 degrees. 60 +60 = 120 and 180 - 120 = 60. Angle s is also 60 degrees

Hope this helps and pls mark brainliest.

I need help with this question! Will mark brainliest :)

Answers

Answer:

A. -1/5

B. 8 gallons

C. 75 miles driven

Step-by-step explanation:

Part A is essentially just asking for the slope, which is written as a fraction with the numerator being the number of units the line goes up/down and the denominator being the number of units the line goes left/right. Because the line is going down from left to right, the slope is negative. The slope is -1/5.

Part B can be answered by simply looking at the graph and seeing where the line is at above 175 miles, which is 8 gallons.

Part C can be answered in the same way as Part B, by looking at where the line is at when level with 12 gallons, which is 75 miles driven.

Allen has a 75 yard spool of yarn. He needs to cut the spool of yarn into 6 1/4
yard pieces of yarn.
How many 6 1/4
yard pieces of yarn can Allen create from the 75 yard spool of yarn?

A. 6 pieces

B. 12 pieces

C. 20 pieces

D. 36 pieces

Answers

Answer:

B. 12 pieces

Step-by-step explanation:

75 / 6 1/4 or 75 / 6.25 = 12

Answer:

b (12)

Step-by-step explanation:

ill mark brainliest i need help
A) (-2,4)
B) (-4, -2)
C) (-4, 2)
D) (2,-4)​

Answers

The answer is c.Hope this helps

a worker produced 480 parts over an 8-hour shift. how many parts per hour did the worker produce.

Answers

Answer:

60

Step-by-step explanation:


Can someone help please I’ll give brainliest!

Answers

Answer: F.

Step-by-step explanation:

First we have to determine the common factor for all of them, which in this case is 11.75. Then we have to multiply that by 40 which gives us 470.

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