Mathematics Middle School

1. Solve each equation.
a. 2x = 10
b. -3x = 21
c. 1/3x = 6
d. -1/2x = -7

Answers

Answer 1

Answer:

Step-by-step explanation:

All you do is divide

For a, what is 10 divided by 2? The answer is 5!

For b, what is 21 divided by -3? The answer is -7!

For c, what is 6 divided by 1/3? The answer is 18!

For d, what is -7 divided by -1/2? The answer is 3.5!

Answer 2

A:  x = 5

B: x = -7

C: x = 18

D: x = -14

Related Questions

[tex]x-17=-6[/tex] 8 the grade mathematics

Answers

Answer: 11

you want to add 17 to -6 and then x will = 11

Hope that had helped

So X=11 your answer would be 11 because if you Move constant to the right-hand side and change its sign it would be X=-6+17 do you calculate the sum and I’ll give you 11

A muffin recipe calls for 4 cups of sugar and yields 36 muffins. If China only wants to make 24 muffins, how much sugar will she need?

Answers

Answer:

6

Step-by-step explanation:

I might not be right but I think it's 6 because

24÷4=6

i think its 2 2/3 give me brainliest if correct please!!

Solve the system.

7x + 2y = 24
8x + 2y = 30

Solve the system.

4x + 11y = 9
x + 11y = −6

Solve the system.

−6x + 6y = 6
-6x + 3y = −12

Solve the system.

3x + 2y = 9
3x − 7y = -18

Answers

1. x=6 y=-9
2. x=5 y=-1
3. x=5 x=6
4. x=1 x=3

PLEASE, WILL MARK BRIANLIEST IF HELPFUL!!!
I need help with this question, you need to arrange the boxes from smallest to largest!!!

Answers

Answer:

Step-by-step explanation:

put the second one in first slot  first on in the second slot fith one in forth slot

take the forthslot and pu it in the fith slot and the last two just switch them

Answer:

put the second one in first slot  first on in the second slot 5th one in forth slot

take the 4th slot and put it in the 5th slot and the last two just switch them

Step-by-step explanation:

Mandy bought a sweater that cost d dollars. She paid the clerk $40.00. Which expression shows her purchase?

Please put the expression in the right order

Answers

Answer:

$40.00 - d

thats the expression

0.4x + 6.1, x= -5. (show work)

Answers

0.4
x
+
6.1
x
=
−
5
Step 1: Simplify both sides of the equation.
0.4
x
+
6.1
x
=
−
5
(
0.4
x
+
6.1
x
)
=
−
5
(Combine Like Terms)
6.5
x
=
−
5
6.5
x
=
−
5
Step 2: Divide both sides by 6.5.
6.5
x
6.5
=
−
5
6.5 x
=
−
0.769231

i have no idea what the answer is please help

Answers

Answer:

3f

Step-by-step explanation:

Move 3 to the left of f, or just 3. (Since there isn't a 3f, do 3)

Answer: B. 8

Hope this helps

The ratio of North American Butterflies to South American butterflies at a butterfly park is 7:5. The ratio of South American butterflies to European butterflies is 5:2. There are 70 North American butterflies at the butterfly park.

Answers

Answer:

There are 70 North American butterflies, 50 South American butterflies, and 20 European butterflies.

Step-by-step explanation:

NA butterflies: SA butterflies: E butterflies

7:5:2

To get 70 North American butterflies, you would have to multipy the ration by 10. As such, 5 times 10 = 50 and 2 times 10 = 20.

HELPPPPPPPPPPP MEEEEEEEEEEEE


Can you answer this

-What practical effect does Discovery impose on the Right of Occupancy?


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Answers

what the answerStep-by-step explanation:

Compare the fractions in each pair. Select the correct sign.

=
>

Answers

Answer:

as far as i know it is >

Step-by-step explanation:

Answer:

It’s >

Step-by-step explanation:

On a local sports team, 20% of 50 players are left-handed. How many left-handed players are on the team?

Answers

Answer:

Step-by-step explanation:

50*20%=10

10 players are left-handed.

Answer:

20% of 50 is 10

Step-by-step explanation:

The ratio of boys to girls at a day care center is 2:5. There are 16 boys at the center. What is the total number of boys and girls in the center?


a. 16

b. 40

c. 56

d. 19

Answers

The answer is B. 40

You have to multiply 2 times 8 to get 16 so you have to do that to the other side so you multiply 5 times 8 and you get 40.

Answer:

C

Step-by-step explanation:

2 : 5

16:?

So we need to make cross method. So,

5*16: 80

and

2*x: 2x

[tex] \frac{2x}{2} [/tex]

[tex] \\ \frac{80}{2} [/tex]

So divide both side and we got x:40

Total girls and boys: 56

Write the slope intercept form of the equation of each line.

Answers

Answer:

y=-3/2x+4y=-3/2y=3x+2y=3/2+3

Step-by-step explanation:

A navy submarine descended at a rate of 4 feet per second. a. Write the descent rate as an integer. b. Write an expression to find the submarine's elevation after 5 minutes.

Answers

Answer:

1200

Step-by-step explanation:

Since the value they are asking for is in minutes, we need to convert seconds to minutes. We can do that by multiplying 4 and 60, because there are 60 seconds in a minute, and we need to find the value of one minute.  Also because the value they gave is 4. When we do this, we get 240. To get the final answer, we need to multiply 240 and 5, because 240 is the descending rate per minute, and they are asking for 5 minutes. When we do this, we get 1200.

(I might get this wrong, so like yeah.)

Help mehhh pls!!!Pls Pls!?

Answers

I’m gonna guess 2, since 3 can go into both of them you can divide 6 by 3. So 2 feet
I think the answer is 2.

Round to the nearest Tenth.

Answers

26.04 I think I am not really sure what the question is asking

{(12,6), (8,4) , (14,7), (-6, -3)} Identify the constant and equation of the ordered pair

Answers

Answer:

divided or multiplied by half

Step-by-step explanation:

I know this is the answer or at least you can figure out the answer by reading this

A food company produced 65 pounds of a new cereal and was going to package it in 4-ounce boces. The cardboard company is offering a special price on 5-ounce boxes. Will the food company have more or fewer promotional boxes if they decide to go with the 5-ounce boxes instead of the 4-ounce boxes? Select from the drop down menu the responses that make the statement true.

Answers

Answer:

Fewer because when there is boxes with larger quantities of cereal, they will need less boxes because of the box to cereal ratio. I hope this helps!

Step-by-step explanation:

10 ounces for $2.40 is a better deal than 8 ounces for $2.08.

2
SEE ANSWERS

Answers

Answer:

2.40/10 = 0.24 per Oz

2.08/8 = 0.26 per Oz.

so yes, 10 Oz. for 2.40 is a better deal

Step-by-step explanation:

your are welcome

TRUE, 10 ounces is better than 8

PLEASE HELP
Wants the equation.

Answers

Answer:

Step-by-step explanation:

If I'm looking at this correctly, it's y= -2x-3

y= -2x-3.

i hope this helps, just got into it in school

Please help due very soon: Draw the dialation of ABCD using center A and scale factor 1/2. Label the dialation EFGH.

Answers

Answer:

mlmklnoin

Step-by-step explanation:

OK HELP I WAS WRONG THERES ONE MORE AFTER THIS JYYCVTTYVJV

Answers

Answer:Idk

Step-by-step explanation:

Not sure sorrz
Sorry

Use the diagram to answer each of the following questions.
a) Without performing any algebraic manipulations, can you define h the relation between x and y?
b) Write the expressions for x and y in terms of k.
c) Write the expression for w in terms of k.
d) Write the expression for z in terms of k.

Answers

Answer:

Step-by-step explanation

x and y is the line slope to slope e to answer your question so

write out b and you will find your answer.

Solve each problem using a formula for perimeter or area
ill give brainliest!!!!!

Answers

12. S=p/5
13. A=wh
14. P=a+b+c
15. A=bh/2
16. A= p-b-c

Answer:

12. S=p/5

13. A=wh

14. P=a+b+c

15. A=bh/2

16. A= p-b-c

Step-by-step explanation:

The value y of varies directly with x. When y = 19.375, x = 7.75.
What is the value of x when y is 21.5?
A.10.5

B.5.6

C.8.6

D.2.5

Answers

Answer: (X,Y) = (0.4, 7.75)

Step-by-step explanation:

Y=7.75,

19.375X=7.75

Then solve for X

Divide 19.375 on both sides to get X=0.4

Y=7.75

X=0.4

c. 8.6 i think i’m not sure

peyton ran 4/5 of a mile in 1/8 of an Hour. What is Peyton's constant of proportionality in miles per hour?

Answers

Answer:

6.4 Miles Per Hour

Step-by-step explanation:

Let h be hours

Let mi be miles

We put this in equation form

4/5mi = 1/8h

In order to calculate the rate we would have to make h singular therefore we multiply both sides by 8

4/5mi * 8 = 1/8h * 8

= 32/5mi = h

= 6.4mi = h

Answer:

pmg hsiskenenejeeisisisisossiwkwnevheej

need help on these by tonight (questions are in attachments)

Answers

Answer:

First week: 1.34      Original Cost: 3.35

Step-by-step explanation:

So you know how much the second week cost $1.34. So to find the first week you need to divide 40% with 100 to get .4, after getting .4 you need to get the second weeks cost and divide 1.34 to .4 and you get 3.35. That is your original cost. So when you divide 3.35 with .4 for the first discount of the first week you get 1.34

Sorry the second one is more confusing I just learned this last week so I'm sorry if I am wrong and I hope someone else follows on my answer.

What is the simplified value of the expression below?
12.4x(-6.3)
A. -78.12
B. -1.97
C. 1.97
D. 78.12
PLEASE HURRY!!!!!!!!! God bless all! :) :)

Answers

D is the correct answer -78.12

On the number line below, p represents a number. What is the value of the opposite of that number

Answers

Answer: -1 2/4

Step-by-step explanation:

Tamar has 24 pencils. 4/6 of the pencils need to be sharpened. How many pencils need to be sharpened?

Answers

Answer:

16 pencils need to be sharpened

Step-by-step explanation:

6 divided by 24 = 4 x 6 = 24 switch the 6 with a 4 and its 4 x 4= 16

The answer to this is 16
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