Evaluate the expression when a=7 and c=-2.
a-4c

Answers

Answer 1

Answer:

15 is the answer


Related Questions

Mr. Jones has 550 goats, which is 10% more than Mr. King has. How many more goats does Mr. Jones have than Mr. King?

Answers

Answer:

55

Step-by-step explanation:

Number of Jone's goats = 550

Let Number of King's goat = x

Jone's goat is 10% more than King's ;

Thus, number King's goat would be ;

x = 550 - (10% of 550)

x = 550 - 55

x = 495

x = Mr. King's goat

Hence, Jones goat is :

550 - 495 = 55 more than Mr King's goat.

Mr King has 55 goats

Number of goats owned by Mr Jones is 550

let y represent the goats owned by Mr King

y= 550-(10% × 550)

= 550- (0.1×550)

= 550 - 55

= 495

= 550-495

= 55

Hence Mr King has 55 goats than Mr Jones

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Answers

Answer:

EFG = 90 degrees

GDH = 45 degrees

FEG = 45 degrees

DHG = 90 degrees

Step-by-step explanation:

Find the scale factor

Answers

Answer:

36/x =48/24

36/x =2

2x= 36

x= 36/2

x=18

please help in stuck​

Answers

Answer:

I think it's (A) 27 ft2

Step-by-step explanation

at 1.5 with 1.5 and then add to 4.5 and 4.5 then mutiply the two answers together

*starts praying* if y’all get this right I’m giving Brainliest

Answers

Answer:

8 and 3/10 < 8 and 7/10

Step-by-step explanation:

7/10 is more than 3/10

A pancake recipe calls for 4 1/2 cups of whole wheat flour .If the chef wants to split the recipe into 3 equal batches , how much flour should be in each batch

Answers

Answer: [tex]1\dfrac12\text{ cups}[/tex]

Step-by-step explanation:

Given : Quantity of flour required for 1 recipe = [tex]4\dfrac12[/tex] cups

[tex]=\dfrac{4\times2+1}{2}[/tex] cups

[tex]=\dfrac92[/tex] cups

Now , if  chef wants to split the recipe into 3 equal batches , then quantity of flour in each batch = [tex]\dfrac92\div 3[/tex] cups

[tex]=\dfrac92\times\dfrac13\\\\=\dfrac32\text{ cups} = 1\dfrac12\text{ cups}[/tex]

Hence, the quantity of flour in each batch = [tex]1\dfrac12\text{ cups}[/tex]

The length of the base of an isosceles triangle is x. The length of a leg is 4x-5. The perimeter of the triangle is 89. Find x.

Answers

An isosceles triangles legs are the same.
4x-5+4x-5+x=89
+10 +10
9x=99
/9 /9
X=11

Please help I'm stuck

Answers

Answer:

a^2+20a+24

Step-by-step explanation:

Answer:

your answer is   a^2 + 20a + 24

Step-by-step explanation:

Which represents the decimal 0.071
A. 71 tenths
B. 71 hundredths
C. 71 thousandths
D. 71 Ten thousandths

Answers

Answer:

c 71 thousandths

Step-by-step explanation:

Kenan has $40. He wants to buy a video game for $24 and some candy bars for $1.25 each. How many candy bars can Kenan buy after buying the video game?

Please help me!!

Answers

Answer: 15

Step-by-step explanation:

40- 24 = 16

16 dollars worth of candy

1.25 dollars per candy x 12 candy bars = $15 dollars of candy worth

15 is the closest answer because if u multiply 13 with 1.25 it will be 16.25 which is over the price

Answer:

Step-by-step explanation:

You know he has $40, and you know the game is $24.

Subtract $24 from 40, and you end up with $16.

Find out how many times 1.25 goes into 16, (12) and you know that he can buy 12 candy bars.

Which equation is equivalent to 60% of 25? Select all that apply.

A. 0.6 • 25 = x

B. X• 1.6 =25

C. 6/10 = x/25

D. 60/100 = 25/x

E. x/25 = 60/100

F. 6.0 • 25=x

Answers

Answer:

Step-by-step explanation:

60% of 25 is equivalent to:

A. 0.6 * 25 = x

Answer:

Step-by-step explanation:

A. 0.6 * 25 = x

F. 6.0 • 25 = x

Please help me ASAP

Answers

Answer:

BOTH SIDES ARE 12

Step-by-step explanation:

Answer:

x and y is equal to 33° as x and y are the equal angles of the isosceles triangle given in the figure.

Solve!
1 + 4 = 5
2 + 5 = 12
3+ 6 = 21
8+11 = ?

EXPLAIN!

Answers

Answer:

1 + 4 = 5

2 + 5 = 12

3 + 6 = 21

8 + 11 = 96

Step-by-step explanation:

Multiplied and added by the same numer:

1+4×1

2+5×2

3+6×3

8×11×8

The value of 8 + 11 = 96.

Here given that,

1 + 4 = 5

2 + 5 = 12

3 + 6 = 21

8 + 11 = ?

How to find Missing number?

Finding the missing number in a sequence or series is a fun activity for student to identity the pattern and memorize numbers, fundamental mathematical operations or even counting.

Now, pattern is given as:

1 x 4 + 1 = 5

2 x 5 + 2 = 12

3 x 6 + 3 = 21

Hence,

8 x 11 +8 = 96

So, The value of 8 + 11 = 96.

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What is the value of y? Show work

Answers

Answer:

Sum of the interior angles of the triangle is 180°.

According to the above problem,

[tex]4y + (y + 11) + 39 = 180 \\ 5y + 50 = 180 \\ 5y = 130 \\ y = \frac{130}{5} \\ \boxed{y = 26}✓[/tex]

y=26° is the right answer.

Find the missing side length

Answers

The answer is 14 or c

Question 4
In order to solve the equation -3x - 6 = 5, the first step is to?

1) add 6 to both sides

2) divide by 5 on both sides

3) subtract 6 from both sides

04) multiply by 5 on both sides

Answers

1) Add 6 to both sides

True or false: the following graph demonstrates a proportional relationship between y and x. Explain.

Answers

False, it doesn't cross through the origin and it's addition.

CAN YOU ALSO HELP ME WITH THIS: 2x/4 + 3/8 = x/ 16- 3/2

Answers

Answer:  x = − 30  7   Decimal Form   : x = − 4. ¯¯¯¯¯¯¯¯¯¯¯¯ 285714     Mixed Number Form   : x = − 4 2 7

Step-by-step explanation:

Plzzzzz I need this answer

Answers

Answer:

the answer is the first one which is 3/32inch^3

Step-by-step explanation:

Answer:

Step-by-step explanation: 3/32 in cubed. V=lwh so, 3/4x1/2x1/4

Chris examines a salt crystal under his microscope. He finds that it is a cube with each side length 6 millimeters.
Draw one square face of the crystal on the grid below.

Answers

Answer:

186

Step-by-step explanation:

Divide 4 and 6.0 get 86 add 100 = 86 + 100 = 186

100% right. Kinda confusing ..

In a lab experiment, 30 bacteria are placed in a petri dish. The conditions are such
that the number of bacteria is able to double every 6 hours. How many bacteria would
there be after 19 hours, to the nearest whole number?

Answers

After 19 hours the number of bacteria will be 193.8.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that in a lab experiment, 80 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 19 hours, to determine how many bacteria would there be after 17 hours, to the nearest whole number, the following calculation must be performed:

The number of bacteria will be calculated as,

30 x ((2/6) x 19) = X

30 x (0.34x 19) = X

30 x 6.46= X

193.8= X


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The ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there? *

Answers

Answer:

36 females

Step-by-step explanation:

40 divided by 5 is 9

9 times 4 is 36

When conducting a survey on voter preferences in Florida, which of the following sample groups is representative of the entire Florida resident population?

A) The mayor's 5 neighbors
B) 200 randomly selected Miami residents
C) All Florida residents over the age of 65
D) 200 Florida resident names chosen at random

Answers

D

because his 5 neighbors don’t represent all of Florida and neither do 200 Miami residents or only people over the age of 65.

a sweatshirt at the store is being offered at a 10% discount. if the original price of the sweatshirt is x , write an expression that represents the discounted price of the sweatshirt.

Answers

Answer:

original price is x

discount is 10%

discounted price =10%of x

=10/100×x

=x/10

Answer: original price is x

discount is 10%

discounted price =10%of x

=10/100×x

=x/10

Slope - Rise over run (must be expressed as a fraction) HELP PLSSSSS

Answers

Answer:

3/2

Step-by-step explanation:

A shoe store uses a markup rate 40% when determining the retail price of its items. If the store pays $42.25 for a pair of shoes wholesale, what will be the retail price of that pair of shoes?

Answers

$59.15

42.25 x .4 = 16.90
42.25 + 16.90 = 59.15

April May and June have 90 sweets between them. May has three-quarters of the number of sweets that
June has.
April has two-thirds of the number of sweets that may has. How many sweets does June have?

I NEED AN ANSWER ASAP! PLEASE ​

Answers

Answer:

40

Step-by-step explanation:

The number of sweets in June is  40

Let the number of sweets June have is "Q"

Given that April,  May  and  June collectively have 90 sweets.

Also,  May has three-quarters of the number of sweets that as that of  

June

[tex]\rm Number \; of \; sweets\; for \; May = \dfrac{3Q}{4}[/tex]

Also it is given that April has two third of the sweets that May has hence we can write

[tex]\rm Number \; of \; the \; sweets\; in \; the\; April = \dfrac{2}{3}\times \dfrac{3}{4}Q = Q/2[/tex]

According to the given condition the total number of sweets in three months  is 90 sweets  which can be  solved further in the following way

[tex]\rm \dfrac{Q}{2} + \dfrac{3}{4} Q+ Q = 90 \\\\Q( 0.5 + 1.5 +0.75) = 90\\\\Q = 90/2.25 = \bold{40}[/tex]

So the number of sweets in June is 40

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Answers

Answer:

0.1568

Step-by-step explanation:

hope this helps u

0.1568
Here you go hope I helped ;)

a cheeta runs a speed of 65mi/hr, how many meters/second is that?​

Answers

Answer: 29.058

Step-by-step explanation:N/A

CAN YALL HELP ME WITH THIS

Answers

Answer:

75.36 square cm

Step-by-step explanation:

a=2πr

a=2π(12)

75.36

Answer:

452.16cm²

Step-by-step explanation:

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