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Naddika [18.5K]
3 years ago
12

(01.06 MC) Jonna is 4 years older than her brother. Which of the following expressions shows the sum of their ages if b represen

ts Jonna's brother's age? (2 points) 2b + 4 b + 4 2(b + 4) 4b
Mathematics
1 answer:
Lana71 [14]3 years ago
6 0
Your equation will be: b+4
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D=DVDs and G=Games solve for 2D+3G=15.50 and 3D+1G=12.05
kogti [31]

We have

1G = 12.05 - 3D;

Then,

2D + 3( 12.05 - 3D) = 15.50;

2D + 36.15 - 9D = 15.50;

- 7D = - 20.65;

D = 2.95;

Finally, G = 12.05 - 3 x 2.95;

G = 3.20;

3 0
3 years ago
Of the eggs produced by salmon,80% hatch, and of those, 25% survive to migrate to the ocean. How many eggs are needed to produce
Marina CMI [18]

Answer:

500 eggs are needed

Step-by-step explanation:

so 1/4 or the 80 percent make it to the ocean so 20 percent of total salmon make it to the ocean.

so total number of eggs x

1/5x=100

x=500

if my answer helps please mark as brainliest.

8 0
3 years ago
Read 2 more answers
Please please help! I'm a plato user just trying to graduate.
Komok [63]
I believe your answer is C. But I’m not completely sure!
8 0
3 years ago
The simple interest on a certain sum for 5years at 8% per annum is Rs200 less than the simple interest on the same sum for 3year
Paha777 [63]

Answer:

Step-by-step explanation:

The simple interest on a certain sum for 5years at 8% per annum is Rs200 less than the simple interest on the same sum for 3years and 4months at 18% per annum.Find the sum​

The formula for Simple Interest = PRT

From above question, we have to find the Principal

The simple interest on a certain sum for 5years at 8% per annum is Rs200

Hence,

R = 8%

T = 5 years

Rs 200 = P × 8% × 5

P = 200/8% × 5

P = Rs500

The principal = Rs 500

The simple interest on the same sum for 3years and 4months at 18% per annum.

Simple Interest = PRT

R = 18%

T = 3 years and 4 months

Converted to years

T = 3 + (4 months/12 months)

T = 3.33 years

Hence,

Simple Interest = Rs 500 × 18% × 3.33 years

= Rs 299.7

7 0
3 years ago
A baby weighed 7.25 lb at birth at the end of 8 months , the baby weighed 2 1/2 times its birth weight. how many pounds did the
d1i1m1o1n [39]
Simply multiply the baby's original weight, which is 7.25 lbs, by 2.5

7.25lbs x 2.5 = 18.125 lbs

The baby weighted 18.125 pounds at the end of 8 months.

Hope this helps and May the Force Be With You!

-
Jabba
3 0
3 years ago
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