If a = -2, then what is the value of -2a+ 3?


and

If y = 3, what is the value of -3y - 1?

Answers

Answer 1

Step-by-step explanation:

1) 7

2) -4

hope this helps


Related Questions

Someone please help!

Answers

Answer:

its B

Step-by-step explanation:

They are all direct variations

A group of students go to the store to buy school supplies. If they buy three
binders and four notebooks, the bill will be $4.85. If they buy three binders and
ten notebooks, the bill will be $8.75. What is the cost of each binder and
notebook?

Answers

Answer: Binder = 75c    notebook = 65c

Step-by-step explanation:

3b + 10n = 875

3b + 4n = 485

Subtracting gives:

6n = 390

390/6 = 65

n = 65

Substitute 65 into 3b + 4n = 485

3b + 260 = 485

3b = 485 - 260

3b = 260

b = 75

Devin has a new job as an apple employee he is paid $16 per hour a one time bonus of $4,325. If he earns $4,997 on his paycheck, how many hours did he work

Answers

$4,997 paycheck - $4325 bonus = $672 earnt
$672 earnt / $16 per hour = 42 hours

Devin worked:

42 hours

Find each difference. If you get stuck, consider drawing a number line diagram.

9 − 4

4 − 9

9 − ( - 4 )

- 9 − ( - 4 )

- 9 − 4

4 − ( - 9 )

- 4 − ( - 9 )

- 4 − 9

Answers

1)5
2)-5
3) 13
4)-5
5)-13
6)13
7)5
8)-13

WILL GIVE BRAINLY
IM SO DUMN khans doesn’t make sense with this question to me cuz I did it already and it was apparently wrong

Answers

Answer:

20units

Step-by-step explanation:

how would I solve this ​

Answers

Answer:

x=12

Step-by-step explanation:

subtract each side by five since it is the inverce oporation

X=12 hope this helps

help 8+x2=−12..im confused

Answers

Answer:

Step-by-step explanation:

No real solutions exist. Subtract 8 on both sides to get:

[tex]x^2=-20[/tex]

You cannot take the square root of a negative number without involving imaginary numbers.

Answer and Explanation

__________________________________________________________

-10

__________________________________________________________

The answer is -10 because...

You need to multiply 2 by "x," and to find out what "x" is, we need to add...

[tex]2+-12[/tex]

__________________________________________________________

And if we add  [tex]2[/tex] by [tex]-12[/tex], we get [tex]-10[/tex], which is our answer.

__________________________________________________________

and now, if we add [tex]-20[/tex] by  [tex]8[/tex], we get [tex]-12[/tex], which is what the equation equals, and this is how we know it is correct.

__________________________________________________________

Hope this helps! :)

what percentage of this 100 square grid is shaded?​

Answers

Answer:

80 percent

20 for the first shaded multiply with 4 and its 80

Answer:80%

About 80% I’d say

There’s 20 white blank spaces

100-20=80

solve this and show work​

Answers

Answer:

1.71

Step-by-step explanation:

x/4 = 3/7

4 * 3 = 12

12/7 = 1.714285714285714

Rounded to the nearest hundreths, the answer is  1.71

Identify the transformation that was applied to this letter


A. Rotation about the origin
B. Reflection over the x-axis
C. Translation
D. Reflection over the y-axis

Answers

it should be A ) Rotation about the origin

It costs $16 for 8 specialty chocolates for Valentines Day. Find the unit rate 5 per item (how much for 1 chocolate).​

Answers

Answer:

Unit Rate: 2$ per chocolate

If you're buying 5, it will cost $10

Step-by-step explanation:

Finding the unit rate:

16 ÷ 8 = 2

2 x 5 = $10

If you're talking about what happens if each chocolate cost $5 per item it would be

$5 x 8 chocolates = $40

I hope this helped! :)

if 4 books cost $52, how much will 2 books cost?​

Answers

Answer:    2 books would cost $26.

Step-by-step explanation:

4 books : $52                 You need to get down to 2 books. Divide 4 by 2 and .............................................52 by 2.

2 books : $26

Help pls, answer choices listed also

Answers

Answer:

A.

Step-by-step explanation:

Hi there!

By factoring the trinomial, we end with (x-9)(x-4)

However, we aren’t done yet. To find the zeros, set each expression equal to zero, so it looks something like this.

0 = x - 9

0 = x - 4

Using orders of operations, x = 9 and x = 4

Therefore,  A is your answer.

I hope this helps!

The measures of the two acute angles of a right triangle are in the ratio 2:7. What are the measures of the two angles?

Answers

Answer:

20, 70

Step-by-step explanation:

9x=90

x=10

angles are 20 and 70

please mark as brainliest

I suck at math please help!

Answers

Answer:

62

Step-by-step explanation:

the triangles angles always add up to 180 degrees

66+52=118

180-118=62

hope this helps :) have a nice day !!

Nineteen less than 6 times a number is the same as 16 more than the number. The equation is The solution is x -7 7.​

Answers

Answer:

The number is 7

Step-by-step explanation:

let the said number be x

Nineteeen less than 6 times a number;

6x - 19

equals; 16 more than the number; this is 16 + x

Thus;

6x - 19 = 16 + x

6x-x = 16 + 19

5x = 35

x = 35/5

x = 7

What is m∠1?....................

Answers

answer is 147

hope that helped

Answer:

m∠1 = 147°

Step-by-step explanation:

triangle = 180°

117 + 30 = 147

180 - 147 = 33

line = 180°

180 - 33 = 147

m∠1 = 147°

Write this percentage as a fraction in its simplest form.
65%

Answers

Answer:

13/20

Step-by-step explanation:

Answer:

[tex]\frac{13}{20}[/tex]

Step-by-step explanation:

Put the percentage over 100: [tex]\frac{65}{100}[/tex]

Simplify: [tex]\frac{13}{20}[/tex]

Earth makes a full rotation every
24 hours, Noptune makes a full rotation
every 16 hours. What is the ratio of
Earth rotations to Neptune Rotations?
(in simplest terms)

Answers

Answer:

I think the ratio is 3:2 :)

24:16=12/8=6/4=3/2. The answer would be 3:2 bc you divide both sides by 8 or, like I did, divide it by 2 three times.

There are 35 students in a classroom. The ratio of girls to boys is 2 to 3. How many boys and how many girls are there in the classroom?

Answers

Answer:

15 girls and 10 boys

Step-by-step explanation:

Answer:

students=35

ratio of girls to boys=2:3

2+3=5

girls.

⇒[tex]\frac{2}{5}[/tex]×35

⇒2×7

⇒14

boys

⇒[tex]\frac{3}{5}[/tex] × 35

⇒3×7

⇒21

Step-by-step explanation:

Please help.17 Points

Answers

Answer:

9738.2

Step-by-step explanation:

cus I'm right 84920021

(-3)^2 = 9
9^2 = 81

or you can do it ((-3)^2)^2 = (-3)^4 = 81

fill in the table using the function rules

Answers

1. 25
2. 22
3. 19
4.16
1 = 25 2=22 3=19 4=16

I provided a photo of the work. You have to plug-in the numbers into the x. (View photo as reference)

Please answer it is urgent.

Answers

Answer:

2/3

Step-by-step explanation:

The slope is a 2/3 gradient :>>

Answer:

I believe that the answer is 2/3.. but I may be wrong...

Step-by-step explanation:

help with hw plz also I already found x ​

Answers

Step-by-step explanation:

If you found x already just look for the triangle that equals 180 or whatever the total angle is for problem.

1. Acute 2. Obtuse 3. Right
4. Obtuse 5. Right 6. Acute
7. Acute 8. Obtuse 9. Right

Describe the line below using slope and intercept.

y = 3/2x - 4

Answers

The equation is not linear so the slope doesn’t exist

How many days is in:

3 weeks
5 weeks
7 weeks
9 weeks​

Answers

Answer:

3 weeks 21 days, 5 weeks 35, 7 weeks 49, 9 weeks 63 days

Step-by-step explanation:

Each week is 7 days

3 weeks- 21 days
5 weeks- 35 days
7 weeks- 49
9 weeks- 63

2/5 (s + 20) pls help

Answers

Answer:

2s/5 + 8

Step-by-step explanation:

if you wanted it simplified..

Urgent help on math plz

Answers

Answer:

x = 14

Step-by-step explanation:

First, organize your work by showing that lines are similar

Line KV is similar to line RV

Line UV is similar to line LV

etc, etc.

=========================================

Now notice that line KV and line RV have the numbers 9 and 18 accordingly

and notice that it's an x2 difference.

==============================================

Now apply the same thing to line UV and LV and divide 26 by 2

That gets us 13

=======================================

Now plug 13 into the equation (2x - 15)

2x - 15 = 13

==========================================

Now solve for X

2x - 15 = 13

Add 15 to each side

2x − 15 + 15 =13 + 15

2x = 28

Divide both sides by 2

2x / 2 = 28 / 2

x = 14

1)
Given that r = 2 in and x = 3 in, determine the surface area of the cylinder. Round to the nearest tenth of an inch.
A)
25.1 in 2
B)
62.8 in2
C)
75.4 in2
D)
113.1 in 2

Answers

Answer:

B) 62.8 in^2

Step-by-step explanation:

Thanks alot, and Is that right?

What is the new location of the point (7,-8)
when it has been rotated 90 degrees?

Answers

Answer: The answer is A

Step-by-step explanation:

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