Mathematics High School

WILL GIVE BRAINLIEST
In the two-step equation below, what is the first step you would take to solve this equation?

-7+4r=-15

a. Divide both sides by 4.
b. Add 7 to both sides.
c. Multiply both sides by 4.
Selected:d. Subtract 7 from both sides.

Answers

Answer 1

Answer:

b

Step-by-step explanation:

-7 + 4r = -15

+7             +7

4r = -8

divide both sides by 4

r = -2

Hope this Helps!!!

Answer 2

Answer:

b. Add 7 to both sides.

r=-2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4r−7=−15

Step 2: Add 7 to both sides.

4r−7+7=−15+7

4r=−8

Step 3: Divide both sides by 4.

4r/4=−8/4

r=−2

Related Questions

uhh please help...ASAP.like please. Uhh I’ll give BRAINLIEST for the rig by answer- 2 or more people have to answer

Answers

Answer:

m < 1200

Step-by-step explanation:

0.10m + 130 < 250

-130                -130

0.10m < 120

/0.10      /0.10

m < 1200

What is the difference between –11x – 2 and 13x + 5?
24x + 7
-24x + 7
24x + 3
-24x - 7

Answers

Answer:[tex]\boxed{-24x-7}[/tex]Solution Steps:

____________________________

1.) Find the opposite of 13x + 5:To find the opposite of 13x+5, find the opposite of each term.[tex]13x=-13x[/tex][tex]5=-5[/tex]

 - We do this because when solving this they are in parenthesis, so you must get rid of the parenthesis by turning them negative.

Equation at the end of Step 1:

[tex]-11x-2-13x-5[/tex]2.) Combine −11x and −13x:[tex]-11x+-13x=-24x[/tex]

 - We do this since we can only have on variable at the end of the problem, so you just combine them if they have the same variable base.

Equation at the end of Step 2:

[tex]-24x-2-5[/tex]3.) Subtract 5 from −2:[tex]-2-5=-7[/tex]

 - We do this because we need one number left over to get a simplified version of this equation.

Equation at the end of Step 3:

[tex]-24x-7[/tex]

____________________________

help with these 2 pls and i’ll give brainliest !<3

Answers

1- sin B 12/37 (the first one)
2-sin B 4 over 5 (the last one)

a - b = -14
a + b = _4

Answers

Answer:

+

Step-by-step explanation:

For the second equation did u mean a+b=-4?

I need help! what's 2+2=????














































4...

Answers

Answer:

4

Step-by-step explanation:

:)

q = 3s + 4t
make s the subject pls I will mark brainliest to the answer

Answers

Answer:

q=3s+4t

q-4t=3s

(q-4t)/3=s

Step-by-step explanation:

The radius of a circle r in centimeters can be found by solving r to the second power = 70. What is the radius of the circle r, in centimeters?

Answers

Answer:

bhb jkabdjkea 7- 70 bhakbhkd

Please help me answer this!!!!

Answers

Answer:

Step-by-step explanation:

this is what i got. hope this helps!

Answer:

k = 70

Step-by-step explanation:

k = 6x + 100

k = 6(-5) + 100

k = -30 + 100

k = 70

What is the slope of the line that passes through the points (2, 6) and (8, 3)?​

Answers

Answer:

[tex]-\frac{1}{2}[/tex]

Step-by-step explanation:

The slope of a line is the change in the line, it is also called; [tex]\frac{rise}{run}[/tex]. The equation to find the slope of a line is;

[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]

Substitute in the given points;

( 2, 6 ) and ( 8, 3 )

[tex]\frac{3 - 6}{8 - 2}[/tex]

Simplify,

[tex]\frac{-3}{6}[/tex]

[tex]-\frac{1}{2}[/tex]

Convert 4/5 into a decimal

Answers

Answer:

0.8

Step-by-step explanation:

Convert the fraction to a decimal by dividing the numerator by the denominator.

Answer:4/5=0.8

Step-by-step explanation:


Elijah and Jonathan play on the same soccer team. They have played 3 of their 15
games. They each create a model to represent x, the number of games their team has left
to play. Their models are shown below. Explain whether each model is correct.

Answers

Answer: 1. 3x=15. 2. is correct

3. X=15

Thisss is late pls helpppp!!

Answers

Answer

36

Step-by-step explanation:

Step-by-step explanation:

1. d = 250 +5x

2. y+4

hope this helps!

If the figures below are similar, find the scale factor of figure B to figure A

Answers

Answer: 3

Step-by-step explanation: Figure B has side measures 16, 20, and 9. Figure A has side measures 48, 27, and 60. The ratio of each of the corresponding sides is 1:3 (16:48, etc). Therefore, the scale factor of Figure B to Figure A is 3.

If f(x)=1+2x-3x2, what is the value of f(-7)?​

Answers

Answer:

answer of this qn is -150

Elena is binding a small booklet with a spine that is inches long. She uses staples that are -inch long. If she puts the staples end-to-end through the booklet, without gaps or overlaps between them, how many staples would it take to bind the booklet?

Answers

The question is incomplete as it is missing the length of the book spine and length of the staple.

Assume the question goes thus :

Elena is binding a small booklet with a spine that is 15 inches long. She uses staples that are 0.5 -inch long. If she puts the staples end-to-end through the booklet, without gaps or overlaps between them, how many staples would it take to bind the booklet?

Answer:

30 staples

Step-by-step explanation:

Given that:

Length of book spine = 15 inches

LENGTH of staple = 0.5 inch

Since it is assumed that staples are applied end-to-end on the book without gaps ; the number of staples which will be used is ;

Length of book spine / length of staple

= 15 inches / 0.5 inch

= 30 staples

find slope (-3-,3) (6, -13)

Answers

Answer:

-10/9

Step-by-step explanation:

do y2-y1/x2-x1 to find it

FOOD DeLila has 4 1/2 pies to divide equally among 9 people. How much will each person get?

Answers

Answer:

1.

Step-by-step explanation:

Lets make [tex]4\frac{1}{2}[/tex] into a improper fraction!

Whole number times denominator and add denominator 2 x 4+1= 9

Now we divide

[tex]\frac{9}{9} =1[/tex]

So each person gets 1 amount of food.

Hope this helps :)

Melanie needs 5,000 chocolates for an event so far she has brought 2 cases of 1,125 chocolates each how many more does she need

Answers

Answer:

2750 chocolates

Step-by-step explanation:

Find how much she has bought already:

1,125(2)

= 2,250

Then, subtract this from 5,000

5000 - 2250

= 2750

So, she still needs 2750

Answer:

2,750

Step-by-step explanation:

2 cases of 1,125 chocolates = 2,250 chocolates

5,000 - 2,250 = 2,750 more chocolates needed

(that's also 3 cases of chocolates needed :p)

Determine the unknown integer in the number sentence
___ - (-5) = 40

Answers

Answer:

35

Step-by-step explanation:

Answer:the answer is 35

Step-by-step explanation:

what are the numbers from least to greatest -8 1/2, -4 1/2, -10 1/2, 4 1/2

Answers

Answer:

-10 1/2, -8 1/2, -4 1/2, 4 1/2

Step-by-step explanation:

Basically to get the answer, its easiest to convert the fraction to a decimal then put it on a number line. 1/2=0.5.

Answer:

-10 1/2, -8 1/2, -4 1/2, 4 1/2

Step-by-step explanation:

Something that helps is a number line, put 0 in the middle and put positive numbers on and negitive numbers so you can see what is smaller. For example:

least to greatest

<-------------------------------------------->

-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

answer fast!!!!!!!!!
pls

Answers

what’s the question, and is there a picture to it?

Please help someone!!!

Answers

Answer:

[tex]x = 25[/tex]

Step-by-step explanation:

[tex](4x) + (5 + 3x) = 180[/tex]

[tex]4x + 5 + 3x = 180[/tex]

[tex]7x + 5 = 180[/tex]

[tex]7x = 180 - 5[/tex]

[tex]7x = 175[/tex]

[tex] \frac{7x}{7} = \frac{175}{7} [/tex]

[tex]x = \frac{175}{7} [/tex]

[tex]x = 25[/tex]

Pleasee pleaseee help me so I can not get in trouble because my grades

Answers

Answer:

she has 40 times as many

Step-by-step explanation:

Answer: 20

Step-by-step explanation:

80/4= 20

go answer my last q please and if u answer this q just for the points i will report u

Answers

Answer:

ok i will go on you last q

Step-by-step explanation:

Given that f(x) = 4x - 7 and g(x) = 4x, find a simplified expression for
f(f(x)).

Answers

Given:

[tex]f(x)=4x-7[/tex]

[tex]g(x)=4x[/tex]

To find:

The expression for f(f(x)).

Solution:

We need to find f(f(x)).

[tex]f(f(x))=f(4x-7)[/tex]                             [tex][\because f(x)=4x-7][/tex]

[tex]f(f(x))=4(4x-7)-7[/tex]                             [tex][\because f(x)=4x-7][/tex]

Using distributive property, we get

[tex]f(f(x))=4(4x)+4(-7)-7[/tex]

[tex]f(f(x))=16x-28-7[/tex]

[tex]f(f(x))=16x-35[/tex]

Therefore, the expression for f(f(x)) is [tex]f(f(x))=16x-35[/tex].

solve the inequality: -5y - 8 < 2

Answers

Answer:

y>-2

Step-by-step explanation:

that is the answer

which statement is NOT true about the Absolute of -6?

A.it describes the difference between -6 and ) on the number line.
B.It equals the absolute value of 6.
C. it describe the difference between 6 and -6 on the number line
D.it can be expressed as | -6 |

Answers

Step-by-step explanation:

the answer is B..........

Please please help me making brainliest if correct

Answers

Answer:

It's A

Step-by-step explanation:

Because both triangles have the same side connected to, which means that that side is congruent to each other and because it tells us that JL and JK are congruent and KM and ML are congruent that means that its sss. Also, it is not giving us an angle to find the congruence so it has to be sss.

The cellular connection buys new model Z-phones for $80 each and sells them for $200. What is the percent markup, n, for the model z-phone?

Answers

Answer:

250%

Step-by-step explanation:

Hi there!

In order to solve this problem, we have to divide 200 by 80.

When we do this, we get 2.5. The number in the ones spot, in this case 2, would be worth 200%.

Now we have the 0.5

A half is equivalent to 50%, so we add those two percentages together to get 250%.

I hope this helps!

find x. i need this fast guys

Answers

Answer:

5

Step-by-step explanation:

58+78=131

180-131=49

10(5)-1

=5

Answer:

x=5

Step-by-step explanation:

A triangle= 180

53+78+10x-1=180

Combine like terms

130+10x=180

Subtract by 130 on both sides

10x=50

Divide by 10 on both sides

x=5

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