Mathematics High School

I think of a number. I multiply it by 3 and then subtract 7. The answer is 17.
What was the number I was thinking of?

Answers

Answer 1

Answer:

8

Step-by-step explanation:

you solve this by reversing the excercise.

17 + 7 = 24

24/3 = 8

Answer 2

Answer:

8

Step-by-step explanation:

just reverse everything like, 17 +7 then 24/ 3=8

Related Questions

Please help me ASAP


What is the area of this composite shape?

Answers

Answer: 51 sq in

The explanation are in the photos

Answer: 51 in

Step-by-step explanation:

To do this you need to split the composite shape into two separate shapes; a triangle and a rectangle.

To work out the area of the rectangle you have to do 6x7=42

Then to work out the area of the triangle you have to do 13-7 to get the height of only the triangle h (height)=6

Then to find out the base of the triangle you have to do 6-3 as 6 is the overall length b (base)=3

The formula for the area of the triangle is b×h/2 (base times height divided by 2) which is also displayed as 3x6/2=9 which is the area of the triangle

So to work out the area of the composite shape you have to add the area of the rectangle and the area of the triangle (42+9).

can someone help me please

Answers

Answer: 12.50$


Explanation: 5.25$ (per pound) and he wants 3 pounds so we multiply 5.25x3 which equals 15.75 and then we subtract 3.25 (because of the coupon) which makes your final answer 12.50$

Someone please tell me the domain and range. Thank you.

Answers

one is (5) because Domain is left to right

and number two is (4) because range is up and down

question is attached
will give brainliest ty !!

Answers

Answer:

A. (2x, 2y)

Step-by-step explanation:

Original figure: PQRTS

Dilated figure: P'Q'R'S'T'

Take one of the corresponding sides of the figure and find the scale factor:

SR = 2, S'R' = 4Scale factor is 4/2 = 2

The dilation rule as per above is:

(x, y) → (2x, 2y)

Correct option is A

HHhhheeelllppppp!!!!!!!!

Answers

Answer: 9x-3

Step-by-step explanation:

A grocery store sells 3 pounds of Granny Smith apples for $6.27. It sells 5 pounds of Red Delicious apples for $9.95. Which costs more per pound?​

Answers

Granny Smith apples cost more.



The Granny Smiths apples sells it for 2.09 per pound. Red delicious sells it for 1.99 per pound.


Step by step
Divide 6.27 by 3 you’ll get 2.09
Divide 9.95 by 5 you’ll get 1.99
And 2.09 is greater then 1.99 so Granny Smith sells it for more


Hope this helps

simplify 3/5 : 8/9 plzzzzzzzzzzzzzzzzzz help​

Answers

Step-by-step explanation:

3/5:8/9

3/5 *9/8

27/40

hope it helps

alguien me ayuda con esto ?​

Answers

Answer:

como vamos a resolverlo si no nos muestra la recta porque en la recta estan los valores

Simplify the expression by combining like
terms:
3x + 18 + 4x + 2

Answers

Answer:

7x+20

Step-by-step explanation:

3x + 18 + 4x + 2

Combine like terms

3x+ 4x   + 18+2

7x         + 20

Katie is 1.73 m tall. George is 7 cm shorter than Katie. How tall is George?
Give your answer in m​

Answers

Answer:

Katie height  =1.73 m                        

George height =7 cm

formula

1 meter =100 cm                     7/100 =0.007m

     so George height =0.007 m

height of George = Katie height - George height

                            = 1.73 - 0.007 m

                          = 1.723 mHeight of George = 1.723 m

Step-by-step explanation:

Finally, add the areas of triangle A, rectangle B, and triangle C What is the total area of the polygon? Enter your answer in the box. The total area of the polygon is square inches.​

Answers

Answer:

there is noo triangle for me to answer this quiestioon

Step-by-step explanation:

Answer:

no pic

Step-by-step explanation:

find the sale price to the nearest cent .. $40 sweater; 33%discount​

Answers

Answer:

$26.80

Step-by-step explanation:

(I don't know exactly how other people were taught to do percentages, but this is how I was taught and I find it the easiest for me.)

You are going to subtract your percentage number by 100.

100 - 33 = 67

This will give you your multiplier so you can then get your answer but you have to turn it into a decimal.

0.67 x 40 = 26.80

I don't know why I keep getting 93 ft but it says it's wrong...
Find the perimeter of the figure.

Answers

Answer:

Your answer is 84.

9+9+9+9+9+9 (9x6) +30. 9x6 is 54 so then, you'd have to do 54+30 to get 84.

~Sophia

Answer:

96 ft

Step-by-step explanation:

9 + 9 + 9 + 9 + 12 + 9 + 9 + 30 = 96 ft

Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -6 and 162, respectively. (2 points)
a
an = 2 • 3n - 1

b
an = 2 • (-3)n - 1

c
an = 2 • 3n

d
an = 2 • (-3)n + 1

Answers

Answer: C is the answer

can u help me please

Answers

Answer:

1. B

2. C

3. D

4. A

Step-by-step explanation:

ANSWER THE QUESTION PLZ!!!!

Answers

Answer:

C is your Answer

Step-by-step explanation:

Answer:

a or b i will help no further

The coordinate plane below shows a triangular region at sea between three islands. Each unit on the coordinate plane represents 10 miles
SEARCH REGION
sty
7
А
6
5
4
2
C
-8-7-6-5-4-3-2-191
3 4 5 6 7 8 >
B
-345
B
4
-5
-6
H=10 miles
-81
What are the area and perimeter of the triangular region? Choose all that are correct

Answers

Answer:

Step-by-step explanation:

A point in geometry is a location. It has no size i.e. no width, no length and no depth. A point is shown by a dot. A line is defined as a line of points that extends infinitely in two directions. ... A plane extends infinitely in two dimensions

the area of a rectangular lawn is 255 metre square if its length is 15 M find its perimeter​

Answers

Answer:

Step-by-step explanation:

width is 255/15=17

perimeter = 17*2+15*2=64

EZ

BRAINLIEST PLS ANSWER LOVESSS

Laura and Luis are hosting a FIFA World Cup Finals party and have purchased dinnerware to represent their favorite teams. Lara, a fan of team Germany, bought 25cups and 40plates with the German flag printed on them. Luis, who is rooting for Argentina, bought20cups and 35plates with the Argentinian Flag printed on them. Laura spent a total of $445.00and Luis spent a total of $380.00.

Which of the following systems could represent the situation? Select all that apply.
25c+40p=445
25c+25c=445
20+35=380
35+40=380
45+75=825

Answers

Answer:

The first and the third the last as well

Step-by-step explanation:

Hey I’m sorry but can you answer my question it’s due at 8

Lori bought some cookies for $2 each and muffins for $3 each. She bought twice as
many muffins as cookies and spent $16. How many cookies did Lori buy?

Answers

Answer:

2 cookies

Step-by-step explanation:

let c represent cookies, m represent muffins. set up a system of equations:

2c+3m=16

m=2c

(the top equation shows that cookies are $2 each, and muffins are $3, and that the total cost is $16. the bottom equation shows that Lori bought twice as many muffins as cookies).

then solve the system of equations by substitution, substituting 2c for m in the top equation:

2c+3(2c)=16

2c+6c=16

8c=16

c=2

this means that lori bought 2 cookies.

Answer:

2 cookies

Step-by-step explanation:

let c = no. of cookies

2c = no. of muffins

The cost for c cookies is 2c since each cookie was $2

and the cost of 2c muffins is 3(2c) = 6c since each muffing was $3

The total cost = 2c + 6c = 16

                                 8c  = 16

                                   c = 2

So, she bought 2 cookies and 4 muffins

One angle of an isosceles triangle measures 140°. Which other angles could be in that
isosceles triangle? Choose all that apply.
140
61
20°
7

Answers

Triangles have to equal up to 180° so there isn’t two answers that line up unless we’re picking one out of these it would be 20°
it could be 20 or 7. it can’t be 20 AND 7, because all triangles angles have to add up to 180, but either or is correct. both are possible answers i think.

2) A fair coin was tossed 75 times. The coin landed on Heads 42 times and Tails 33 times. What is the experimental probability of the coin landing tails side up? Your answer needs to be a fraction in simplest form. Grid in boxes below. One digit/symbol per box, 7. SP.6 5) Tanya set a goal to swim 30​

Answers

Answer:

[tex]\frac{11}{25}[/tex]

Step-by-step explanation:

In the experiment that was conducted the coin was tossed a total of 75 times and out of those times it only landed on tails 33 times. Therefore the experimental probability of the coin landing on tails can be calculated by the dividing the times it landed on tails by the total number of times it was tossed. Like so...

[tex]\frac{33}{75}[/tex] or 0.44

This fraction can also be simplified to its simplest form of [tex]\frac{11}{25}[/tex] which is obtained by dividing both the numerator and denominator by 3

At a clothing store, 3 T-shirts and 8 hats cost $ 65. The cost of 2 shirts and 2 hats is $ 30. How much does each shirt and hat cost?​

Answers

Answer:

1 shirt=$7.50 and 1 hat=$7.50

Step-by-step explanation:

What is the surface area of the 3-dimensional shape? please help quick 3 ft 3 ft 3 ft

A. 24 square feet

B. 72 Square feet

C. 198 Square feet

D. 216 Square feet

Answers

The answer is A its really easy

30 timess please only serious awnseresss

Answers

Answer:

120

Step-by-step explanation:

Answer:

30 times ?

let no be x

30×x=30x

30×4=120

PLS HELP!! What is the radius of a shape with a circumference of 8.9?

Answers

Answer: 1.42

Step-by-step explanation:

There are groups of 5 6 in 5.

Answers

Answer:

la verdad es 17,en total del grupo

angle sum theory

PLS HELP!!

A)74°

B)92°

C)83°

D)82°

Answers

Answer:

the answer must be 74 or 82

Answer:

It's 58

Step-by-step explanation:

That's the answer

△ABC∼△A′B′C′
Solve for x and y.

Answers

Answer:

Step-by-step explanation:

5/15=y/21

y=7

6/x=5/15

x=18

Find the space inside a rectangle with a width of 18 and length of 20

Answers

Answer:

360 sq units

Step-by-step explanation:

I'm not completely sure if you want me to find the area or not so I will find the area of the rectangle :)

Area formula: l x w

l x w = 20 x 18

20 x 18 = 360

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