MATHEMATICS MIDDLE SCHOOL

Simplify 5/8-(-7/2)

Answers

Answer 1
Answer:

Answer:

33/8

see the pic for the steps

Answer 2
Answer: 5/8 - (-28/8) = -23/8

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Olivia ties 2.5 feet of ribbon onto one balloon. How many yards of ribbon does Olivia need for 18 balloons?

Answers

She needs 7.2 feet of ribbon. She needs 2.4 yards of ribbon. Hope this helps you!

Please help me❗️

Any answers without proof will be reported

Answers

the y intercept is 1

the slope is (y2-y1)/(x2-x1)

         m = (0-1)/(6-0)  = -1/6

the equation of the line is y = mx+b

                 y = -1/6x+1

the graph is shaded above  y>

the line is dotted so no equals

y> -1/6x+1

Choice C

Write an equation that has (1, 2) as a solution. Substitute (1, 2) into the equation to verify your answer.

Answers

let's try with y = 2x

if we substitute x = 1
y = 2*1
y = 2

so the equation is valid

If mZBCD = 51°, solve for x.
(1 4x + 4) 8
55°

Answers

Answer:

(14x+4)8=55 were x = 3.07.

Step-by-step explanation:

(14x + 4) 8 = 55

             -8     -8

      14x + 4 = 55

             - 4     -4

            14x = 55

                 14

            x = 3.07

4)A car is usually priced at £9800 but now has a discount of 8%.
What is the new price of the car?

Answers

the answer is 9800-8%=9016

How do you know the correct order in which to evaluate algebraic expressions?

Answers

In solving algebraic expressions, there is an order in which to solve it.

1) perform the operation inside the parenthesis first  
2) then perform the operation with the exponents
3) apply multiplication and division from left to right of the equation.
4) apply addition and subtraction from left to right of the equation.

Remember this: PEMDAS for easier recall. (parenthesis, exponents, multiplication, division, addition, subtraction)
To evaluate algebraic expressions there is no order. You just need to follow something called pemdas. The way to remember this is
 
p = please
e = excuse
m = my
d = dear
a= aunt
s = sally
 
So just remember Please excuse my dear aunt sally or pemdas.
   
P = parentheses (Apply from left tor right)
E = exponent (Apply from left tor right)
M = multiplication (Apply from left tor right)
D = division (Apply from left tor right)
A = addition (Apply from left tor right)
S = subtraction (Apply from left tor right)
 
Then solve!
 
Hope this helps!! xD
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