can someone solve this:
a = 21+(-4)

Answers

Answer 1

Answer:

17

Step-by-step explanation:

Answer 2

Answer:

a=17

Step-by-step explanation:

When an equation says +(-) like this one, all you have to do is subtract :)

Knowing that if you rewrite this you get a= 21-4, which is 17!

I hope this helps, and have a great day! <3 :D


Related Questions

I will give brainliest. Please help fast! (Solve for number 5)

Answers

Answer:

the area of the parallelogram is 120 units

BRAINLIEST FOR WHO ANSWERS CORRECTLY!!!! ASAP HELP (LOOK AT SCREENSHOT)

Answers

E two sides added together must be larger then the last side

Answer:

e. 9 ft

Step-by-step explanation:

Mondays at pizza pan you can cheese to toppings at no extra cost for your pizza to tacos are mushroom sausage peppers and extra cheese how many different pizza's could you order

Answers

Answer:

We can order 35 different types of pizza based on the toppings.

Step-by-step explanation:

There are 3 different types of pizza crust which a person can choose for his pizza. On Monday's company has introduced new campaign in which a person can choose extra toppings of his choice at no additional cost. The topping are of 7 different types. The total number of different pizza which a person can have is 7C3. Solving through computation technique we get 35.

Use Pascal's Triangle to help find the missing values. x^4-4x^b+6x^2-ax+1

a=

b=​

Answers

Answer:

The value of a = 4 , b = 3

Step-by-step explanation:

Given the equation,

x⁴ - 4[tex]x^{b}[/tex] + 6x² - ax + 1

so, the coefficients are -      1     4      6     a     1

the Pascal's triangle is as follows :

                                         1

                              1                     2

                   1                   2                        1

         1                   3                   3                         1

 1                4                   6                      4                       1

So,

from Pascal's triangle ,

we can see that , after comparing with given equation , we get

Row n = 4

The coefficient be 1 4 6 4 1

∴ we get

a = 4

and

(x+y)⁴ = x⁴ + 4x³y + 6x²y² + 4xy³ + y⁴

Now, as given equation be x⁴ - 4[tex]x^{b}[/tex] + 6x² - ax + 1

By comparing we get y = -1 and b = 3

So, we get

a = 4 , b = 3

5

A school rewards students for good work by giving them merit points.

James has x merit points.

Sarah has three times as many merit points than James.

Robert has 68 fewer merit points than James.

ETTER

GRADE

Each merit point is worth 3 pence.

All three of the students have a total of £15.81

EFFECT

Work out how many merit points each student has.

Irk

James:

Your

Marks

Sarah:

Robert

Answers

Answer:

James = 119 points

Sarah = 357 points

Roberts = 51 points

Step-by-step explanation:

Given that :

James = x points

Sarah = 3x points

Roberts = x - 68 points

Each point = 3 pence

All students have a total of £15.81

1 pound = 100 pence

£15.81 pound = 1581 pence

3x + 3(3x) + 3(x - 68) = 1581

3x + 9x + 3x - 204 = 1581

15x - 204 = 1581

15x = 1581 + 204

15x = 1785

x = 1785 / 15

x = 119

Hence,

James = 119 points

Sarah = 119 * 3 = 357 points

Roberts = 119 - 68 = 51 points

Find the indicated side of the triangle

Answers

Answer:

It's a 30-60-90 triangle so x=6

Step-by-step explanation:

Answer:

90 I think bc I saw the right angle

Find the perimeter of the triangle below.



pls help!!!

Answers

Answer:

180

--

40*9 / 2

Hope this helps!!!

Find 15· 2 2/3 using the Distributive Property.

Answers

Answer:

12.67

hope it's helpful ❤❤❤

THANK YOU.

Ir (2p-1,p) is a solution of the equation 9y + 12 = 10x, then find the value of p​

Answers

Answer:

p = 2

Step-by-step explanation:

Since, (2p-1,p) is a solution of the equation 9y + 12 = 10x.

Therefore, plug x = 2p - 1 & y = p in the above equation.

9p + 12 = 10(2p - 1)

9p + 12 = 20p - 10

12 + 10 = 20p - 9p

22 = 11p

p = 22/11

p = 2

BRAINLIST!!!

Rochelle heard on the radio that today's temperature is higher than it was yesterday. Yesterday's high temperature was reported as 73 °F.

Create an inequality on the number line of today's temperature.

Answers

Answer:

the inequality will be X > 73

Step-by-step explanation:

Find each value below.




Answers

Bbbgkwjejejejejehehehejejejejeje

Answer:

7.) x = 21

8.) y = 6

9.) angle F = 62 degrees

10.) TS = 10

Step-by-step explanation:

5y-2 = 28

5y = 30

y = 6

4x+6 = 90

4x = 84

x = 21

angle F = 90-28

angle F = 62 degrees

3z-8 = z+4

2z = 12

z = 6

TS = z+4 = 10

Use addition to solve the system of linear equations. Include all of your work in your final answer.

Answers

Answer: No solutions

Step-by-step explanation:

You can either use substitution or elimination

You can plug in y to the first equation to get x-(x-4)=6 to get 4=6 which is not possible so no solutions

What is the base of the expression 1112?
o 3
O 11
O 12
o 21

Answers

The answer is 3 mate

If a rocket has an acceleration of 10 m/s2 and a force of 5 N what is its mass? *

Answers

Answer:

1/2 kg

Step-by-step explanation:

Formula:

[tex]F =ma[/tex]

Force = mass x acceleration

F = 5 | a = 10  |m = ?

5 = 10m

m = 0.5 or 1/2


What is the y-intercept of the function below?
y= 2x + 7????

Answers

Answer:

(0,7)

Step-by-step explanation:

This equation is already in slope-intercept form, (y=mx+b), where m is the slope, and b is the y-intercept.

From the equation, we see that (0,7) is the y-intercept.

Let me know if this helps!

Help this is kida hard for me

Answers

Option A is ur answer

as

5^2 + 12^2 = 25 + 144

= 13^2

Answer:

5, 12, 13

Step-by-step explanation:

because

5²+12²=169

root 169= 13

basically it's this because the numbers are still whole

Robin is multiplying 80 times 42. How many partial products will Robin have to add?

Answers

Step-by-step explanation:

42×80 =3360

I hope this answer help you.

Answer:

80 times 42.=80×42=3360

ur question is incomplete

Ted, the postman, has 110 letters to deliver. If Ted can deliver 10 letters in 5 minutes,
how long will it take Ted to deliver all his letters?

Answers

Answer:

55

Step-by-step explanation:

There are 11 tens in 110, so 11 times 5 is 55.

1.1
QUESTION 1
Simplify the following without using a calculator
1.1.1 -4 * (8-(-3)) +7
1.1.2 + 55-20-4​

Answers

Answer:

−36.89

31.22

Step-by-step explanation:

Please help and hurry!

Answers

Answer is a cause the square wit the 4 triangles forms three dimensional object A

To find the area of a composite figure, you must find the area of each polygon
and then add their areas together to find the total area of the composite figure.
What is the area of the rectangle in this composite figure?

A. 23cm
B. 112cm
C. 23cm^2
D. 112cm^2

Answers

B. MemkdkdksksjsjdjdjdjdjdjdjdjfSKSKSKS

Answer:

it is b

Step-by-step explanation:

Eli is following this recipe to bake bread rolls.
He uses 700 mL of water.
How much of the other ingredients does he use?

Recipe: Makes 12 bread rolls
420 g flour
21 g salt
9 g yeast
45 mL oil
300 mL water

Answers

400/300 = 4/3 the water listed in the recipe
420g × 4/3 = 560g flour
21g × 4/3 = 28g salt
9g × 4/3 = 12g yeast
45ml × 4/3 = 60ml oil

PLEASE HELP ILL DO ANYTHING

Answers

Answer:

B) 2 1/4

Step-by-step explanation:

Answer:

B.2 1/4

C.9/4

Step-by-step explanation:

2 1/4 is what shown

9/4=2 1/4

A triangle has sides represented by 7, x, and x−1. If the perimeter is 28, find the length of the longest side.

Answers

Answer:

x (11 unit) is the longest side

Step-by-step explanation:

Given:

Sides;

7, x, and x−1

Perimeter = 28

Find:

Longest side

Computation:

Perimeter = sum of all sides

So,

7 + x + (x -1) = 28

2x + 6 = 28

x = 11

So,

x -1 = 11 - 1 = 10 unit

x (11 unit) is the longest side

To buy a laptop computer, Jane borrowed $5,000 for 3 years at an annual rate of 6%.
How much interest will she pay if she pays the entire loan off at the end of the third
year?

Answers

Answer:

5955.08

Step-by-step explanation:

First year: 5000×(6÷100)=300

Second year : 5300×(6÷100)=318

Third year : 5618×(6/100)=337.08

And = 5955.08

Tina plans to make wooden frames to put her two triangular art pieces in.

How much wood would she need fortriangle DFG?



Enter your answer in the box.
in.

Two triangles A B C and D F G. A B is 5 inches. B C is 6 inches. A C is 7 inches. D F is 15 inches. F G is 18 inches. Angle B is congruent to angle F.

Answers

Answer:

54in

Step-by-step explanation:

i took the test

A business executive received a $6,000 bonus check from her company at the end of the year. This was 5% of her annual salary. How much was her annual salary before receiving the bonus?

Answers

Answer:

120000

Step-by-step explanation:

5 x 20 = 100%

6000 x 20 = 120,000

Simone is buying pies for a party. One cherry pie costs $7, and one apple pie costs $5.

If Simone needs to buy at least 18 pies and has no more than $110 to spend, what is the maximum number of cherry pies she can buy?

Answers

Answer:

the answer is 15

Step-by-step explanation:

because 110÷7$

The maximum number of 15 cherry pies she can buy.

What is division?

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

Simone is buying pies for a party.

One cherry pie costs $7,

and one apple pie costs $5.

If Simone needs to buy at least 18 pies and has no more than $110 to spend,

the maximum number of cherry pies,

= 110/7

= 15.71.

If 15 cherry pies, then 3 apple pies.

The total amount = 15 x 7 + 3 x 5

= 110

Therefore, 15 is the maximum number.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ6

9. Write the equation that expresses the table below.

Answers

Answer:

y = 10x

Step-by-step explanation:

When x = 2, y = 20

When x = 5, y = 50

When x = 7, y = 70

In each of these examples, y = 10 * x.

The answer is y = 10x.

HELP ASAP ASAP ASAP ASAP PLS HELP HELP

Answers

Answer:

i hope my answer help you

Step-by-step explanation:

1st=8+4=12

2nd the answer is to the nearest 7.06

3rd =2+2³.7=2+13=15

4th=(36÷(4+5))+25=36÷9+25=4+25=29

5th=16÷16+8-3=1+8-3=9-3=6

6th=8-2.4=5.6

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