All categories

3 years ago

Please help! please!!

Mathematics

1 answer:

Volgvan3 years ago

4 0

Answer:

21.5

16.5

10.5

1.5

3.5

7.5

Step-by-step explanation:

69 - 90.5 = -21.5 = 21.5

74 - 90.5 = -16.5 = 16.5

80 - 90.5 = -10.5 = 10.5

92 - 90.5 = 1.5

94 - 90.5 = 3.5

98 - 90.5 = 7.5

You might be interested in

Reed uses 8 pieces of glass per square foot to make a stained glass window.

Alex17521 [72]

9 pieces of glass
______________________________________________________________
8 pieces of glass per square foot
864 square inches
1 foot = 12 inches
864/12= 72 feet
72/8= 9 pieces of glass

3 0

4 years ago

Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y = x+1 1 X+ 3 2.

Troyanec [42]

Answer:

D. (4, 5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

y = x + 1

y = 1/2x + 3

Step 2: Solve for x

Substitute in y: x + 1 = 1/2x + 3
Subtract 1/2x on both sides: 1/2x + 1 = 3
Subtract 1 on both sides: 1/2x = 2
Divide both sides by 1/2: x = 4

Step 3: Solve for y

Define original equation: y = x + 1
Substitute in x: y = 4 + 1
Add: y = 5

Step 4: Graph

We can confirm our answer.

8 0

3 years ago

Katie and Mina both commute to work. Katie's commute on the train takes 10 minutes more than one half as many minutes as Mina's

Verdich [7]

Answer:

30 = one halfx + 10

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

One x-intercept for a parabola is at the point (-0.4,0). Use the quadratic formula to find the other x-intercept for the parabol

navik [9.2K]

Answer:

-1

Step-by-step explanation:

Set y=0.

$5 {x}^{2} + 7x + 2 = 0 \\ x = \frac{ - 7± \sqrt{ {7}^{2} - 4(5)(2)} }{2(5)} \\ x = \frac{ - 7± \sqrt{ 9} }{10} \\ x = \frac{ - 7±3}{10} \\ x = - \frac{2}{5} \: \: \: \: or \: \: \: \: - 1$

The x-intercepts are - 0.4 and - 1.

The other x-intercept is - 1.

6 0

3 years ago

Find the rates that are equivalent to 8 games/2weeks

dedylja [7]

Answer:

Step-by-step explanation:

if there is 8 games in 2 weeks, that means there is 4 games a week

16 games would equal 4 games a week

create an equation

16=4x

4x is the number of games per week

16=number of games

divide to isolate x and you get 4

4 0

3 years ago