MATHEMATICS
MIDDLE SCHOOL

Answer: So the answer is 36÷3= because that is an expression and the answer is 12 in case you need to know the answer

Answer: 36 divided by 3...............

MIDDLE SCHOOL

The perimeter of a triangle is 69 cm. The measure of the shortest side is 5 cm less than the middle side. The measure of the longest side is 5 cm less than the sum of the other two sides. Find the lengths of the sides. A. 17 cm; 21 cm; 31 cm

B. 15 cm; 21 cm; 33 cm

C. 16 cm; 21 cm; 32 cm

D. 15 cm; 22 cm; 32 cm

Answer:

option C

Step-by-step explanation:

We will call:

a= the shortest side

b= the middle side

c = the longest side

perimeter= p =69cm

So we have:

69 = a+b+c equation 1

a= b-5 equation 2

c= a+b-5 equation 3

Using equation 1 we have:

69-c = a+b

Using equation 3 we have:

c+5=a+b

we substitute equation 1 in equation 3:

c+5=69-c

2c=64

c=64/2 so we have c =32cm

Using: c+5=a+b

32+5=a+b

37=a+b

a=37-b

Using equation 2 we have:

37-b=b-5

37+5=2b

42/2=b we have b=21cm

a=37-b=37-21= 16 cm

Finally: a=16 cm b=21 cm c=32cm

MIDDLE SCHOOL

Is -7 bigger than - 8

Hey!

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Answer:

True

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Explanation:

The smaller the negative number the bigger it is.

-7 > -8

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Hope This Helped! Good Luck!

HIGH SCHOOL

maria uses 2 3/4 cups of flour, 13/8 cups of sugar, and 1/2 cup of butter what is the total amount of ingredients used to make the cake

Volume of the flour = 2 3/4

Volume of the sugar = 13/8

Volume of the butter = 1/2

Total volume

2 3/4 + 13/8 + 1/2

11/4 + 13/8 + 1/2

(22+13+4) / 8

39 / 8

4 7/8

Volume of the sugar = 13/8

Volume of the butter = 1/2

Total volume

2 3/4 + 13/8 + 1/2

11/4 + 13/8 + 1/2

(22+13+4) / 8

39 / 8

4 7/8

HIGH SCHOOL

Can someone explain this please? A technician can test video player chips at the rate of -3t^2 +16t+5 chips per hour (for≤0 ≤t ≤6), where t is the number of hours after 9:00 am. How many chips can be tested between 11:00 am to 3:00 p.m.? (assume t=0 for 9:00 a.m.)

Answer:

17 chips

Step-by-step explanation:

The equation that models the situation is

Between 11:00 am, to 3pm, 4 hours have passed.

We substitute t=4 to get:

Therefore between 17 chips can be tested between 11:00 am to 3:00 p.m

Answer:

the number of chips tested between

11:00a.m. to 3:00p.m. is 68.

Step-by-step explanation:

MIDDLE SCHOOL

Draw two lines that are perpendicular. What type of angle is formed where the perpendicular lines intersect?

a right angle (90 degrees)

It forms a right angle. I agree with starlipika

MIDDLE SCHOOL

The area of a rectangle is expressed as (12m + 18) square feet. If the width of the rectangle is 6 feet, choose an expression to represent the length of the rectangle. A. 6(12m + 18) feet B. (m + 1) feet C. (2m + 3) feet D. (6m + 12) feet

Answer:

the answer ic C if an xplanitation is needed , let me know , PLS MARK BRAINLIEST IF CORRECT

Step-by-step explanation:

Answer:

The answer is d

Step-by-step explanation:

HIGH SCHOOL

Solve for x: −2x + 5 < 7

a. x > −1

b. x < −1

c. x > −6

d. x < −6

Since we divided by a negative 2 on both sides the sign switches and the answer is { a. x > -1 }

MIDDLE SCHOOL

15-5(4x-7)=50 how to do this in a multi-step equation

First step Order of Operations

- Parathesis
- Exponents
- Multiply/Divide (which comes first; left to right)
- Add/Subtract (which comes firet; left to right)

MIDDLE SCHOOL

The length of the hypotenuse of an isoceles right triangle whose leg is one unit

The answer may be 1.4. Isosceles triangles have 2 equal sides. Since you know the measure of one, you know both legs.

1^2+1^2=c^2

1+1=c^2

√2=c

c=1.4

Remember the hypotenuse must be bigger than the legs.

1^2+1^2=c^2

1+1=c^2

√2=c

c=1.4

Remember the hypotenuse must be bigger than the legs.