FIND TWO NUMBERS WHOSE SUM IS 21 AND DIFFERENCE IS 17

11 , 10
2 ,23
19 ,2​

Answers

Answer 1

Answer:

19, 2

Step-by-step explanation:

let the 2 numbers be x and y with x > y , then

x + y = 21 → (1)

x - y = 17 → (2)

Add the 2 equations term by term to eliminate y , that is

2x = 38 ( divide both sides by 2 )

x = 19

substitute x = 19 into (1) for value of y

19 + y = 21 ( subtract 19 from both sides )

y = 2

The 2 numbers are 19 and 2


Related Questions

Help I will mark brainliestttt

Answers

Answer:

11 or more

Step-by-step explanation:

55-40=15

160/15=10.666

11 or more

a shop is having a sale all items are reduced by 30% work out the sale price of an item normally priced at £110

Answers

Answer:

77 us dollar

Step-by-step explanation:

because I used a calculator

Answer:

77

Step-by-step explanation:

In the figure shown, AB = 8 and AD = 5. What is BC?
BC=type your answer...

Answers

Answer:

AB = 8 and AD = 5

Ad=BC ( given in fig or as its is rectangle and sides of rectangle are equal )

so BC = 5

Last one for shore area of this circle???

will give brainliest
pls hlep me!!

Answers

Answer:

16 pi units or about 50.265 units

Step-by-step explanation:

formula for area of circle is πr^2

Using the image, the radius (half the diameter) is 4 units

put this in equation

pi times 4^2

pi times 16

16pi

A triangle has interior angles of (x+5) (x-5) and (2x) what is the measure of the largest interior angle?

Answers

Answer:

90

Step-by-step explanation:

interior angles of all triangles add up to 180 degrees

180=x+5+x-5+2x

180=4x

45=x

plug back in to find largest angle

2 (45) = 90

Use the graph above to determine which of the following ordered pairs is in quadrant II.
( (-5-2)
(3.2)
(4.-1)
(-4, 6)
hellppp!!

Answers

The answer is (4,-1)

need helpp asap its due by 11:59pm i will give brainliest

Answers

Answer:

The solution is (-6,2)

Step-by-step explanation:

Answer:

Fr

Step-by-step explanation:

Bring 8/(a-x) to a denominator of x-a

Answers

Answer:

[tex]-\frac{8}{x-a}[/tex]

Step-by-step explanation:

[tex]\frac{8}{a-x}[/tex]

we can take common factor of -1 in the denominator

[tex]\frac{8}{-(-a+x)}=\frac{8}{-(x-a)}[/tex]

and now multiply and divide by -1

[tex]\frac{8}{-(x-a)}\cdot \frac{-1}{-1}=\frac{-8}{x-a}=-\frac{8}{x-a}[/tex]

Arlinda is participating in her school reading
challenge. She reads 40 books in 6 months. If 26
of the books are fiction, then what percent of the
books that she read are non-fiction?

Answers

Answer:

14

Step-by-step explanation:

40-26=14 so therefore 14% of the books are non-fiction

The ratio x: y is 1:3
Which of the following statements are correct?
A x is 1/3 of y
B y is 3/4 of (x + y)
x is 1/4 of y
y is 3/4 of x

Answers

Answer:

Option A

Step-by-step explanation:

x : y = 1 : 3

This can be also written as

[tex] \frac{x}{y} = \frac{1}{3} [/tex]

Multiplying y on both the sides

[tex] = > \frac{x}{y} \times y = \frac{1}{3} \times y[/tex]

[tex] = > x = \frac{1}{3} \times y[/tex]

Hence , x is one-third of y

Answer:

A and B

x is [tex]\frac{1}{3}[/tex] of y

AND

y is [tex]\frac{3}{4}[/tex] of (x+y)

Step-by-step explanation:

x:y is 1:3

=>  y is bigger than x

=>  y is 3x bigger than x

=>  y = 3 lots of x

=>  [tex]y =[/tex] [tex]3x[/tex]

=>  [tex]\frac{y}{3}[/tex] [tex]= x[/tex]

=>  [tex]\frac{1}{3} y[/tex] [tex]= x[/tex]

So x is [tex]\frac{1}{3}[/tex] of y

y is [tex]\frac{3}{4}[/tex] of (x+y)

If x = 1 and y = 3 (substitute in values)

=>  3 is [tex]\frac{3}{4}[/tex] of (4)

=>  3 is [tex]\frac{3}{4}[/tex](4)

=>  3 is ([tex]\frac{3}{4}[/tex]x4)

=>  3 = 3

Therefore, y is [tex]\frac{3}{4}[/tex] of (x+y) is true

So the answers are:

x is [tex]\frac{1}{3}[/tex] of y

AND

y is [tex]\frac{3}{4}[/tex] of (x+y)

Solve |x+4|=6 need help for a quiz

Answers

Answer:

down below

Step-by-step explanation:

set up two equations:

x + 4 = 6                    x + 4 = -6

solve both:

x = 2                          x = -10

plug it back in to the original equation:

|2 + 4| = 6.                 |-10 + 4| = -6

|6| = 6.                       |-6| = -6

6 = 6.                         since absolute value is always positive:

correct.                     |6| = -6

                                6 does not = -6

write both of these down if you need to show your work

On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and curves up and increases in quadrant 1.
What are the domain and range of the function on the graph?

The domain includes all integers, and the range is y ≥ 0.
The domain includes all integers, and the range is y > 0.
The domain includes all real numbers, and the range is y ≥ 0.
The domain includes all real numbers, and the range is y > 0.

The graph will begin at a lower point on the y-axis.
The graph will increase at a faster rate.
The graph will increase at a slower rate.
The y-values will continue to increase as x-increases.
The y-values will each be less than their corresponding x-values.

Answers

Answer:

The domain of the function i.e. the value of x can be any real number and the range of the function is y > 0.

Step-by-step explanation:

On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and curves up and increases in quadrant 1.

Therefore, as x tends to - ∞, the y-value tends to 0 but not equal to zero and as x tends to +∞, the y-value also tends to +∞.

Hence, the domain of the function i.e. the value of x can be any real number and the range of the function is y > 0. (Answer)

7000000000000000000000 people ate 800 pizzas how many slices would each person get?

Answers

Hello! I may be wrong, I’m just going off the calculator LOL. I got:

5.6e+24

Hope this helps!

8+4x≥12

x≤5

x≥1

x≤1

x≥5

Answers

its b
and I dont rlly feel like explaining so yea

WILL GIVE BRAINLIEST PLEASE HELP ME

Answers

It would be negative (-)62

Which of the following statements is true of the number 651.44

A) The 4 in the hundredths place has a value that is 10 times that of the 4 in the tenths place

B) The 4 in the tenths place has a value that is 10 times that of the 4 in the hundredths place

C) The 4 in the tenths place has a value that is 100 times that of the 4 in the hundredths place

D) The 4 in the tenths place has a value that is 1/10 that of the 4 in the hundredths place

Answers

Answer:

B

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

The ratio of blue to red for a purple paint made by
28
mixing 24 oz of red with 28 oz of blue.

Answers

Answer:

28:24

Step-by-step explanation:

Blue to red is 28:24 or 7:6.

~.❤~Please Answer~❤.~

Answers

Answer:

True

hope it helps!

Step-by-step explanation:

it’s true
hope this helped u clarify c:

If y is a positive integer, for how many different values of y is [tex]\sqrt[3]{144\y}[/tex]a whole number?

Answers

Answer:

2

Explanation:

I'll explain later, it has to do with prime factors, and perfect cubes.

The two values of y that work are 18, and 144.

³√(144/18) = ³√(8) = 2 [whole number]

³√(144/144) = ³√(1) = 1 [whole number]

what is
5/8 dived by 6

Answers

Answer:

3.75

Step-by-step explanation:

Answer:

5/6 divided by 6 = 5/48 or 0.1041666666 repeating

is -32/8 an integer...??? Pleaseeee helpppp meeee

Answers

Answer:

yes

Step-by-step explanation:

-32/8 = -4

-4 is an integer

Yes -32/8=-4. So it integers

Solve the Inequality! Please help me, answer needed FAST AND QUICK! Will give BRAINIEST 10 POINTS

Answers

Answer:

z (the arrow with teh line is pinting to the z) -4

Step-by-step explanation:

Simplify: −5(−4) + 13 =

Answers

Answer:

33

Step-by-step explanation:

-5(-4)= 20

20+13=33

ava scored a 74% a 75% and an 80% on her first three math quizzes. What would she need to scorr on her 4th quiz to have an average of 80 percent ​

Answers

Answer:90

Step-by-step explanation:

June was thinking of a number. June doubles it and gets an answer of 98.9. What was the original number?

Answers

Answer: 49.45

Step-by-step explanation:

From the information, we are informed that June was thinking of a number and then doubles it and gets and gets an answer of 98.9.

Let the number be represented by x.

Since she doubles it, thus implies that:

2x = 98.9

x = 98.9 / 2

x = 49.45

The number is 49.45

What scale factor was applied to the first rectangle to get the resulting image?

Enter your answer as a decimal in the box.

Answers

Answer:

7.5/3= 2.5

i checked by doing

3*2.5 and it was equal to 7.5

the scale factor is 2.5

Answer:

2.5

Step-by-step explanation:

I divided 7.5 by 3 and got 2.5then to check my answer I multiplied 2.5 and 3 to get 7.5Hope this helps.

HELPPP simplify the expression !!!

Answers

Answer:

Exact form: 3√5/5

Decimal form: 1.34164078...

Step-by-step explanation:

Answer:

6.708020

Step-by-step explanation:

Select the correct answer.
Which expression is equivalent to 13 square root 22b - 10 square root 22b, if b>0?

A. 23 square root 22b
B. 130 square root 22b
C. 3 square root b^2
D. 3 square root 22b

Answers

Given:

The expression is

[tex]13\sqrt {22b}-10\sqrt{22b}, b>0[/tex]

To find:

The equivalent expression.

Solution:

We have,

[tex]13\sqrt {22b}-10\sqrt{22b}[/tex]

Taking out common factors.

[tex]=(13-10)\sqrt {22b}[/tex]

[tex]=(3)\sqrt {22b}[/tex]

[tex]=3\sqrt {22b}[/tex]

The expression [tex]3\sqrt {22b}[/tex] is equivalent to the given expression.

Therefore, the correct option is D.

easy 10 points, math underline. photo below

Answers

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

what is the rate and unit rate for 115 miles on 9 gallons of gas​

Answers

Answer:

the actual answer is 12.7777777778 but you can break it down to about 12.8

Step-by-step explanation:

Hope this helps :)

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