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nekit [7.7K]
3 years ago
13

Please help check if my answer if there correct

Mathematics
2 answers:
Lesechka [4]3 years ago
6 0
Nathaly ! This is super work. 1-6 and 10 are correct. #7 is not marked. #9 is incorrect. And I'm so sure that you have the hang of it and you know what you're doing that I'm not even going to bother slogging through #8.
dusya [7]3 years ago
5 0
I think you are, but i am not 100% sure.
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Can someone tell what order of operations problem makes 13?
almond37 [142]

Answer:

4 + (2 + 1)2 = 4 + (3)2 = 4 + 9 = 13

8 0
3 years ago
4. If 30 locusts eat 420 grams of grass in a week. How many days will it
attashe74 [19]

Answer:

The amount one locust eats in a week is 420/30 = 14 grams so it eats 14/7 = 2 grams per day, therefore 21 locusts can eat 21 * 14 = 42 grams per day. 420 / 42 = 10 so the answer is 10 days or 1 week and 3 days.

4 0
4 years ago
The sum of the ages of three brothers Tema,Juma and Abdul is 65 years. Juma is twice as old as Abdul and a half times as old as
Ber [7]

Answer:

Tema = 26 years

Juma = 13 years

Abdul = 26 years

Step-by-step explanation:

Let their ages be represented as:

Tema = x

Juma = y

Abdul = z

From the question, we are told that:

Juma is twice as old as Abdul

y = 2z

z = y/2

= 0.5y

And Juma is a half times as old as Tema.

y = 1/2x

y = 0.5x

x = y/0.5

x = 2y

Hence,

x + y + z = 65

2y + y + 2y = 65

= 5y = 65

y = 65/5

y = 13 years

Since y = Zuma's age, Zuma is 13 years old

From the above question

Since 2y = z

y = 13

2 × 13 = z

z = 26

Since z = Abdul's age, Abdul is 26 years old

From the above question

x = 2y

y = 13 years

x = 2 × 13 years

x = 26 years.

Since x = Tema's age

Tema is 26 years.

Therefore, their present ages are:

Tema = 26 years

Juma = 13 years

Abdul = 26 years

7 0
3 years ago
$1725 with 15% markup what’s the new price
fredd [130]

Answer:

$1983.75

Step-by-step explanation:

1725 x 0.15 = 258.75

now add to the original price

1725 + 258.75= 1983.75

5 0
3 years ago
5×(-2w-4) what's the answer.
maria [59]

Answer:

-10w -20

Step-by-step explanation:

5(-2w-4)

Distribute the 5

5*-2w -5*4

-10w -20

7 0
3 years ago
Read 2 more answers
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