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Vlada [557]
3 years ago
13

If a = 8 and b = 4, then b(b+ a) - b = A. 12 B. 20 C. 44 D. 52

Mathematics
2 answers:
Gemiola [76]3 years ago
6 0
C. 44 is the answer 4(4+8)-4=44
inna [77]3 years ago
6 0
Simple!
Okay first plug in the variables given to you.
4(4+8)-4=? Now lets solve.
First, in order to get rid of the paranthesis, multiply 4 by the numbers inside, which in this case are 4 and 8.
That will give us...
16+32-4. Now, remember PEMDAS?
Addition (A) comes before subtraction (S).
So lets add 16 and 32.
Thats 48.
Now 48-4= 44.
44 is our final answer (: so C
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Elena L [17]

Answer:

X = all #'s

why?

6x+10+10x < 4(4x+3)

Combined liked terms

16x + 10 < 16x +12

you can see that there is X on both sides and the lowest one has a +10 and the highest has a +12 so it will always be greater by 2

5 0
2 years ago
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3) Rita has 3/4 m of Ifugao cloth. She used 2/3 m for placement. What part
enot [183]

Answer:

Unused = \frac{1}{12}m

Step-by-step explanation:

Given

Total= \frac{3}{4}m

Used= \frac{2}{3}m

Required

Determine the part left

The part left is calculated using:

Used + Unused = Total

Unused = Total - Used

Unused = \frac{3}{4}m - \frac{2}{3}m

Take LCM

Unused = \frac{9m - 8m}{12}

Unused = \frac{1m}{12}

Unused = \frac{1}{12}m

6 0
2 years ago
What is the value of - 2/5 ÷ 3/4​
wlad13 [49]

Answer:-8/15

Step-by-step explanation:

5 0
3 years ago
Is 43 a two digit odd number that is composite?
Trava [24]
No, 43 is a prime number, so that statement is false.
5 0
3 years ago
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How to express each of the following pairs of
vichka [17]

Answer:

<em>a) 3<x<8</em>

<em>b) -4<x<-2</em>

<em>c) -6<x<5</em>

<em>d) -21/4 < x-8/3</em>

<em>e) 0<x<7</em>

Step-by-step explanation:

Given the following inequalities

a)  x > 3, 2x - 3 < 15

Solve 2x - 3 < 15

2x < 15+3

2x<18

x<18/2

x<8

Combine x>3 and x<8

If x>3, then 3<x

On combining, we have:

3<x<8

b) For the inequalities 25 > 1 - 6x, 1 > 3x + 7

25 > 1 - 6x

25-1>-6x

24>-6x

Divide through by -6:

24/-6 > -6x/-6

-4 <x

For the inequality 1 > 3x + 7

1-7>3x

-6>3x

-6/3 > 3x/3

-2 > x

x < -2

Combining both results i.e -4 <x and x < -2, we will have:

-4<x<-2

c) For the inequalities 2x - 7<3< 27 + 4x

On splitting:

2x - 7<3 and 3< 27 + 4x

2x < 3+7

2x<10

x<5

Also for 3< 27 + 4x

3-27<4x

-24<4x

-24/4 < 4x/4

-6<x

Combining both solutions i.e x<5 and -6<x will give;

<em>-6<x<5</em>

d) For the inequalities 3x + 8 <0 < 21 + 4x

3x + 8 <0

3x < -8

x < -8/3

Also for 0 < 21 + 4x

0-21<4x

-21<4x

-21/4 < 4x/4

-21/4 < x

Combining -21/4 < x and x < -8/3 will give;

<em>-21/4 < x-8/3</em>

<em></em>

e) For the inequalities 5x - 36 < -1 < 2x – 1​

Split:

5x - 36 < -1

5x < -1+36

5x<35

5x/5 < 35/5

x < 7

For the expression -1 < 2x – 1​

-1+1 < 2x

0 < 2x

0<x

Combining both inequalities 0<x and x < 7 will give:

<em>0<x<7</em>

7 0
3 years ago
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