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stich3 [128]
4 years ago
12

Simplify: 20 - 2 × 8 + 42 A. 20 B. 160 C. 52 D. 26

Mathematics
1 answer:
Gnom [1K]4 years ago
5 0

Answer: 46

Step-by-step explanation:

You can simplify this using PEMDAS:

Parentheses

Exponents

Multiplication/division

Addition/subtraction

Move through the steps in that order.

In this case, the first two steps are absent, so multiply first:

20 - 16 + 42

Then, add and subtract:

46.

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Help please with 1 and 2. Brainliest
stealth61 [152]

This is for #1

(9-4)(7+6)=41

(24/6)-(2x8)=48

8 0
3 years ago
Read 2 more answers
(4, -9) is it a solution yes or no ? <br>​
ehidna [41]

Answer:

Yes

Step-by-step explanation:

7 0
3 years ago
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14. Write a two-column proof.
scZoUnD [109]

Given:

\bold{ 8x=4y-20} \\\\ \bold{ y=13}

Prove:

\bold{x=4}

Solution:

\to \bold{8x=4y-20}..........(i)\\\\\to \bold{ y=13}........................(ii)

Putting the value of equation (ii) into the equation (i):

\to \bold{8x=4(13)-20}\\\\\to \bold{8x=52-20}\\\\\to \bold{8x=32}\\\\\to \bold{x=\frac{32}{8}}\\\\\to \bold{x= 4}\\\\

putting the value x into the equation (i):

\to \bold{8(4)=4y-20}\\\\\to \bold{32=4y-20}\\\\\to \bold{32+20=4y}\\\\\to \bold{52=4y}\\\\\to \bold{y=\frac{54}{4}}\\\\\to \bold{ y= 13.5}

Therefore, the value of x= 4

Learn more:

brainly.com/question/6219408

3 0
3 years ago
Guided Practice
SCORPION-xisa [38]

Answer:

A.

$5352.90

Step-by-step explanation:

A=p(1+r)^t

A=4,000×(1+0.06)^(5)

A=5,352.90

.........................................................

Answer:

The Final Investment Value is    

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

substitute in the formula above  

 

5 0
3 years ago
Jamal starts work in January with a salary of RM 3650 per month.He gives 10% of his salary to his mother.How much money does Jam
kati45 [8]

Answer:

Earns 56,500

Tax 56,500 × 10/100

=5,650

Invest = 50,850 × 50/100

= 25,425

Food = 25,425 × 30/100

=7,627.5

Shopping = 17,797.5 × 20/100

=3,559.5

Remaining = 14,237.5

3 0
3 years ago
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