Evaluate a - 4 when a = 7. The value is​

Answers

Answer 1

Answer:

3

Step-by-step explanation:

If a=7

a-4 would turn into 7-4

7-4=3


Related Questions

a store bought 250 toys at a cost of 24$ each.
they sold all the toys at a percent markup of 60 percent.​

Answers

Answer: 2.5

Step-by-step explanation:

I took the test

Answer: $9600 revenue and $3600 profit from the toys

Step-by-step explanation: used a markup calculator

Increase the number 60 by 30%

Answers

Answer:

78

Step-by-step explanation:

10% = 6

⬇️ x3

30% = 18

⬇️ Add onto 60

60+18=78

10% of 60=6
30% of 60=18
60+18=78

9x - 4y= 19
4x + 4y= 20

Answers

Answer:

x=3 and y=2

Step-by-step explanation:

9x - 4y= 19

4x + 4y= 20

add both equations;

13x = 39

x= 3

using 4x + 4y= 20;

4(3) +4y=20

12+4y=20

4y= 20-12=8

y=8/4=2

Are x and y proportional?

Answers

The answer is yessssss

Answer:

yes they are

Step-by-step explanation:

What are the x- and y-intercepts?

0,3
1,20
3,36
5,28
7,0

Answers

The required x-intercept is (7, 0) and the y-intercept is (0, 3).

What is the intercept in the equation?

In the equation intercept is the value of the linear function where either of the variables is zero.

Here,
To find the x-intercept, we need to find the point at which the graph intersects the x-axis. This occurs when the y-coordinate is zero.

The x-intercept is therefore (7, 0).

To find the y-intercept, we need to find the point at which the graph intersects the y-axis. This occurs when the x-coordinate is zero.

The x-intercept is therefore (0, 3).

Thus, the x-intercept is (7, 0) and the y-intercept is (0, 3).

Learn more about intercept here:
https://brainly.com/question/3605446

#SPJ1

I am to lazy, you will get 73 points if you answer.

Answers

Answer:9

Step-by-step explanation:

3/4 times 12=3(12/4)=3x3=9

Another way:

3/4=0.75

0.75x12=9

Step-by-step explanation:

9 that's your answer your welcome

ayuda pliss.. una enpresa de alimentos quiere vender durante un trimestre 72.780 cajas de jugos si en un mes vendio 36.210 cajas y en el siguiente 24.955 cajas cuantas csjas de jugos debe vender en el tercer mes

Answers

Answer:

la respuesta es (11.615)

Please help! (Geometry)

Answers

Answer:

x=5

From the dashed lines on the two sides of this triangle, we can see that these two sides are congruent, or equal, to each other.

In geometry, if a triangle has two congruent sides, then we can call it a isosceles triangle.

In an isosceles triangle, the corners  opposite the congruent  sides  are also congruent, meaning, that the angle measures of this triangle are: 88, 9x+1, and 9x+1.

We also know that angles in a triangle add up to 180 degrees.

So, we have: 88+(9x+1)+(9x+1) = 180

Simplifying: 18x + 2 = 92

Solving: 18x = 90, so x=5

Hope this helps!

Casey wants to buy a gym membership. One gym has a $70 joining fee and cost $35 per month. Another Jim has no joining fee and cost $70 per month. when would Casey pay the same amount to be a member of either gym? How much would he pay?

Answers

Answer:

same amount at 2 months. he'd pay 140.

Step-by-step explanation:

35(month) +35(month) =70(joining fee). 70+70=140. that's two months at the first gym.

the second gym is also 140 for the two months because each month is $70. and 70+70=140

-6×-15=4×+35 i need help with this problem​

Answers

Isolate the variable by dividing each side by factors that don't contain the variable.

-6x-15+15=4x+35+15

-6x=4x+50
(Subtract 4 on both sides)

-10x=50
(Divide by 10 on both sides)

x=5

Answer:

x = -5

Step-by-step explanation:

-6x - 15 = 4x + 35

      + 15        + 15

-6x = 4x + 50

-4x   - 4x

-10x = 50

-10x/-10 = 50/-10

x = -5

Can someone help me with these questions immediately? Thank you!

Answers

Answer:

35

................................................

Help me please number 5

Answers

Answer:

a. Equations:

Sammy's Spa: y = 350Shape Up!: y = 20x + 150

b. The graph is attached

c. When number of exercises is no more than 10. This point is the intersection of the lines (10, 350)

The sum of two numbers is 44 and the difference is 2 What are the numbers

Answers

Answer:

21 & 23

Step-by-step explanation:

44 ÷ 2 = 22

The two numbers are going to be close to 22.

21 + 23 = 44

32 - 21 = 2

Answer:

You can try to write two equation from the question

Call x a number and y the other.

The sum of them is 44: x + y = 44

The difference (substract) is 2: x - y = 2

System:

x+y=44

x-y = 2

You can just sum both equations, as the y disappear:

2x = 46

x =46/ 2 = 23

We replace in the equation:

23 - y = 2

y = 21

And we know the numbers are 21 and 23

please hurry and answer correctly. fake answers will be reported

Answers

ok i’ve attached a picture with how i would work out the problem

Factor the expression using 3 as one factor. 3x−30

Answers

Answer:

3(x - 10)

Step-by-step explanation:

3x - 30 = 3(x - 10)

Hii!

__________________________________________________________

Answer:

3(x-10)

Step-by-step explanation:

Note that both terms, 3x and -30, have a 3 in common. This is called the greatest common factor, or g.c.f.

The g.c.f. of 3x and -30 is 3. So we divide both 3x and -30 by 3, and obtain

x-10

Put parentheses around x-10

(x-10)

Next, put 3 outside the parentheses

3(x-10)

--

Hope that this helped! Best wishes.

--


Wendell didn't make it in Nashville. Now he only
has $12 in nickels and dimes left to his name-
barely enough to pay for a bus ticket back
home. If Wendell has 3 times as many nickels
as dimes, how many dimes does he have?

Help meee lol

Answers

Answer:

Wendell only has $12 in nickels and dimes

Let Wendell have x dimes

If Wendell has 3 times as many nickels as dimes, how many dimes does he have?

Number of nickels = 3x

dime 10 c

nickel 5c

10x+5*3x = 1200 ( $12=1200 c)

25x = 1200

x= 48 number of dimes

Student Council has 24 boys as members and 16 girls as members. Using this ratio,
if there were 3 boys, how many girls would there be?

Answers

Answer:

2 girls

Step-by-step explanation:

24 boys and 16 girls gives a ratio of 3 boys for every 2 girls

Answer:

2 Girls

Step-by-step explanation:

24 boys to 16 girls

Divide both sides by eight

24 ÷ 8 = 3 and 16 ÷ 8 = 2

3 Boys to 2 Girls

I hope this helps

What is the solution to this inequality?

−4x−8>−20

Answers

Answer:

x < 3

Step-by-step explanation:

−4x − 8 > −20

Add 8 to both sides.

-4x > -12

Divide both sides by -4. Remember that when you multiply or divide both sides of an inequality by a negative number, the direction of the inequality sign changes.

-4x/(-4) < -12/(-4)

x < 3

Pleaseeee help !!!!!!​

Answers

Answer:

Step-by-step explanation:

its B

Answer:

b

Step-by-step explanation:

3(9x + 14) = 3 * 9x + 3 * 14 = 27x + 42

Help I will be marking brainliest!

A. 48
B. 124.8
C. 135.2
D. 115.2

Answers

Answer:

B.  124.8

Step-by-step explanation:

ΔBDS ~ ΔBZD

BD = 52BZ = 20BS = ?

Use ratios of similar triangles:

BS/BD = DZ/BZBS = BD*DZ/BZ

DZ = √(52²-20²) = 48

BS = 52*48/20 = 124.8

Correct choice is B

10. The sum of two numbers is 102. One number is three less than twice the other.
What are the two numbers?

Answers

Answer:

(2n -3) + n = 102

2n - 3 + n = 102

3n - 3 = 102

3n = 105

n = 35 (the first number)

SO...

The other number is (2 x 35) - 3 =

                                           70 - 3 = 67 (the second number)

The numbers are 35 and 67.

35 + 67 = 102 CHECK!

A new law requires that 5% of an individual's income to be invested in the stock market. Your accounts show that you need to put $430 in the stock market this year. How much did you earn this year

Answers

Divide the amount you need to invest by the percentage.

430/0.05 = 8,600

You earned $8,600

What is a producer? (Think about the word autotrophs

Answers

Answer:

A producer is an animal that produces its own food. An example of a producer is a plant like a tree. They take the suns energy and convert it to chemical energy which benefits them.

Step-by-step explanation:

What is the solution to this system of equations? Remember to write your solution as a a point (x, y).

Answers

Answer:

(1,-3) 1 is x and 3 is y because the two arrows intersept in that coordinate

first part- Mrs. Swanson made 1/2 of a pound of fudge to share equally among 6 students in her reading group. How much fudge will each child get?

2nd part- After handing out the fudge, one of the students eats 1/2 of his fudge.How much of his fudge did the student eat?

Answers

Answer:

How many bottles of juice should they get, so that each child gets the same ... E. David used exactly 8 cups of flour to make 6 loaves of bread. ... 1 At a pizza party, 5 people will equally share 3 pizzas. ... 4 pineapple fruitcakes for a bake sale to raise money for the school band. ... containers left with ½ cup each of hot fudge.

Step-by-step explanation:

what is the answes please I need it!​

Answers

the answer is -4 so the first one

please hurry : AA'B'C'is a rotation of AABC 180° about the origin. What is the length of A'C'?
В,
A. 4 units
B. 3 units
O C. 6 units
D. 13 units

Answers

Answer:

B, 3 units

Step-by-step explanation:

Rotating the triangle doesn't change the length of its sides.

Answer:

B. 3

Step-by-step explanation:

Plssss helpppp!!!!!!!

Answers

Answer:

Subtract 6 from both sides so the equation equals 0 ;)

Step-by-step explanation:

Answer:

Subtract 6 from both sides!

Step-by-step explanation:

I got it wrong at first 0-0

8
1
6
+
-7
² – 50 – 14 V - 50 - 14

Answers

Answer:

Simplified is 14V+653

Step-by-step explanation:

Answer:

The answer is 14V+653

Step-by-step explanation:

If water flows out of a faucet at 500 L per hour, how long will it take for 20 L to come out of the faucet?

Answers

Answer:

2 hr

Step-by-step explanation:

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