MATHEMATICS HIGH SCHOOL

What is the length of diagonal ac in parallelogram ABCD if the diagonal BD = 10cm which is twice the diagonal AC?

Answers

Answer 1
Answer: BD = 10cm   and   BD = 2*AC, so:

2*AC = 10
AC = 10/2
AC = 5 cm

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COLLEGE

Hi, I need a answer for this question.
1/4 of blank is 15
Please help me out

Answers

15 x 4 = 60
answer
1/4 of 60 is 15

hope it helps
of 60 = 15

Break 60 up into half: = 30 & 30 
Break 30 & 30 up into halves: = 15 & 15 & 15 & 15
There are 4 15's.
MIDDLE SCHOOL

-5(3m+6)= -3(4m - 2)

Answers

Answer:

m=-12

Step-by-step explanation:

−5(3m+6)=−3(4m−2)

−15m−30=−2m+6

−15m−30+12m=−12m+6+12m

-3m-30=6

-3m-30+30=6+30

-3=36

-3/-3=30/-3

m=-12



-15m -30 = -12m +6
3m = 36
m= 36/3 =12
MIDDLE SCHOOL

Yumi spent $34.15 buying stamps. The number of 56-cent stamps she bought was 10 less than 4 times the number of 41-cent stamps. How many of each did she buy?

Answers

Answer:

  • 15 @ 41 cents
  • 50 @ 56 cents

Step-by-step explanation:

Let x represent the number of 41-cent stamps Yumi bought. Then the number of 56-cent stamps she bought was 4x-10. Her total purchase was ...

  0.41x +0.56(4x -10) = 34.15

  2.65x -5.60 = 34.15 . . . . . . . eliminate parentheses, collect terms

  2.65x = 39.75 . . . . . . . . . . . . add 5.60

  x = 15 . . . . . . . . . . . . . . divide by 2.65

  4x-10 = 50

Yumi bought 15 41-cent stamps and 50 56-cent stamps.

MIDDLE SCHOOL

For the past 8 weeks, Mr. Thomas has lost an average of 1 lb. 3 oz. each week. How
much did he lose in 8 weeks?​

Answers

Answer:

9 lb 5 oz

Step-by-step explanation:

1 lb 3 oz

1lb = 16 oz

16 + 3 = 19 * 8 = 152 oz = 9 lb 5 oz

MIDDLE SCHOOL

Which of the following ordered pairs could represent the y-intercept of a function. (0,5) (1,1) (9,0) (-2,4)

Answers

Answer: (0,5)

This is because the x coordinate is 0. For any y intercept, the x coordinate is always 0 as this indicates the point is on the y axis.

Contrast this with something like (9,0) and we see that y = 0 indicating this point is an x intercept (it is on the x axis).

Answer:

1.(0,5)

Step-by-step explanation:

MIDDLE SCHOOL

to visit the of the empire state building, a ticket cost $4.00 in 1999.in 2009 ,the price rose to 20.00. what was the percent change?

Answers

Answer:

 The percent change is 400%

Explanation:

We know that percentage change is given by the

i.e we find the difference between the original value and current value and then divide it by original value and multiply the obtained value with 100.

a negative percentage change indicates increase in value.

so we get 4 - 20 = -16

= -4

100 = -400

hence there is an increase of 400% in the percentage which is the required percentage.

Answer:

Step-by-step explanation:

i think its 500%

but im not sure

because 20 divided by 4 = 5

and 5.0 = 500%

HIGH SCHOOL

Kate is making pizza. She puts 8 ounces of cheese on each pizza. If she has 4 24-ounce packages of cheese, how many pizzas can she make? 3 pizzas
6 pizzas
9 pizzas
12 pizzas

Answers

Answer:  The correct option is

(D) 12.

Step-by-step explanation:  Given that Kate is making pizza. She puts 8 ounces of cheese on each pizza and has 4 24-ounce packages of cheese.

We are to find the number of pizzas that she can make.

The total number of ounces in 4 24-ounce packages of cheese is given by

Now, in one pizza, she uses 8 ounces of cheese.

Therefore, the number of pizzas that can be made with 4 24-ounces of cheese is

Thus, the required number of pizzas is 12.

Option (D) is CORRECT.

She can make 12 pizzas
MIDDLE SCHOOL

2y+3(1+2) help me !!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

2y+3(1+2)

Multiply (1+2) by 3.

2y + 3 + 6

Add like terms.

2y + 9

~Hope I helped!~
2y + 3(1+2)

1st of all simplify what's inside the parentheses
2y + 3(3)
2nd of all simplify the right side using disruptive property
2y + 9 
MIDDLE SCHOOL

A student used the equation below to create a table. y = –3x – 5

The student used –2 as one of the values for the input. Which ordered pair could be taken from the table?

A. (–11, –2)
B. (–2, –11)
C. (–2, 1)
D. (1, –2)

Answers

C. (-2,1)

Hope this helps
I think the answer is C.
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