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3 years ago

7

4.2z + 3.8z simplify the expression (Use the operation symbols in the math palette as needed. Simplify your answer. Use whole n

umbers or decimals for any numbers in the expression.)

1 answer:

alexandr1967 [171]3 years ago

4 0

Answer:

8z

Step-by-step explanation:

Since these are like terms, add the numbers together and then put the z on.

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In a class room 3/10 of the students are wearing blue shirts and 3/5 are wearing white shirts there are 20 students In The class

shtirl [24]

Total number of students in the class = 36

Number of students wearing blue shirts = (1/6) * 36

= 36/6

= 6

Number of students wearing white shirts = (2/3) * 36

= 2 * 12

= 24

Then

Number of students not wearing blue or white shirts in the class = 36 - (6 + 24)

= 36 - 30

= 6

So 6 students in the class are wearing a shirt other than a blue or a white shirt. I hope the procedure is clear enough for you to understand.

5 0

2 years ago

What is the answer and I need work for both parts !!!

fenix001 [56]

2a.) 8.8 x 8.8 = 35.2g
2b.) 35.2 x 30 = 1056g or 1.056kg

3 0

2 years ago

Debbie is 5 years older than

vovikov84 [41]

Answer:

Susan is 3 years and Debbie is 8 years old. after 2 years Susan will be 5 Years and Debbie will be 10 years old

Step-by-step explanation:

let the present age of Susan be x years then Debbie is x+5 years

in 2 years

x +2 = x+5+2/2

x+2=x+7/2

2x +4 = x+7

x=3

6 0

3 years ago

C + d = 60<br> 2.5c + 1.75d = 123.75

likoan [24]

Answer:

(c, d) = (25, 35)

Step-by-step explanation:

Multiply the first equation by 2.5 and subtract the second one:

2.5(c +d) -(2.5c +1.75d) = 2.5(60) -(123.75)

0.75d = 26.25 . . . . . . . . . simplify

26.25/0.75 = d = 35 . . . . divide by the coefficient of d

60 -d = c = 25 . . . . . . . . . use the first equation to find c

(c, d) = (25, 35)

3 0

2 years ago

Express 10000 in Index form

9966 [12]

Answer:

10^4

Step-by-step explanation:

10×10×10×10=10,000, which is given number.

4 0

2 years ago