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vesna_86 [32]
3 years ago
7

When he was born Frank weighed 4.2 kg.This was 500g more than Sally.What did Sally weigh at birth?​

Mathematics
1 answer:
Karolina [17]3 years ago
8 0

Answer:

3.7kg

Step-by-step explanation:

4.2kg =4200

4200-500=3700

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9.9 x 10-3 in standard form.
Tema [17]

Answer:

96

Step-by-step explanation:

9.9 times 10= 99-3=96

7 0
3 years ago
Solve, showing all work: (4x − 6) + (3x + 6)<br><br> Note: Drop the parenthesis and add like terms.
qwelly [4]

Answer:

The answer is 7x

Step-by-step explanation:

To solve the problem drop the brackets and add the like terms

∵ (4x - 6) + (3x + 6)

- There is no number multiplied by each bracket so drop the

    brackets without any change in the values inside them

∴ (4x - 6) + (3x + 6) = 4x - 6 + 3x + 6

- The terms 4x and 3x are like terms, so add them

∵ 4x + 3x = 7x

- The terms -6 and 6 are like terms, so add them

∵ -6 + 6 = 0

∴ 4x - 6 + 3x + 6 = (4x + 3x) + (-6 + 6)

∵ (4x + 3x) + (-6 + 6) = 7x + 0

∴ 4x - 6 + 3x + 6 = 7x

∴ (4x - 6) + (3x + 6) = 7x

The answer is 7x

4 0
3 years ago
Solve for x and y <br> 7x+12<br> 12x-28<br> 9y-77
motikmotik

Answer: x= 9y - 77 its vertical intercep 0, -77

8 0
3 years ago
Camden is taking a multiple choice test with a total of 50 points available. Each question is worth exactly 5 points. What would
serg [7]

Answer:

40/50

Step-by-step explanation:

The test is worth 50 points in total. Each question is worth 5 points. So,

50 points ÷ 5 points each = 10 questions

If he gets 2 questions wrong,

10 - 2 = 8

He got 8 out of 10 questions right.

Now, multiply by 5 to find his test score out of 50.

8 × 5 ÷ 10 × 5

= 40/50

His test score would be 40/50.

Hope that helps.

4 0
4 years ago
Read 2 more answers
What is the value of each variable?
Bond [772]

Answer:

∠a = 1/2(95) = 47.5°

∠b = 90°  

arc = (180 - 47.5 - 90)(2) = (42.5)(2) = 85°

3 0
3 years ago
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