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Tanzania [10]
4 years ago
15

Brianna is twice as old as James . David is four times as old as James. Brianna is 20 years younger than David. How old is David

?
Mathematics
1 answer:
IrinaK [193]4 years ago
8 0

Answer:

David might be 40

Step-by-step explanation:

Brianna = 20 + 20 = 40 = David

James = 10 x 2 = Brianna

David = 40 - 20 = Brianna

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Find the unit rate. 4 grams for every $\frac{3}{4}$ serving The unit rate is grams per serving.
Katyanochek1 [597]

Answer:

5 1/3 grams per serving

Step-by-step explanation:

Find the unit rate. 4 grams for every $\frac{3}{4}$ serving The unit rate is grams per serving.

The unit rate in grams per serving is given as:

3/4 servings = 4 grams

1 servings = x grams

Cross Multiply

x grams = 4 grams × 1 serving/3/4 serving

x grams = 4 grams ÷ 3/4 servings

x grams = 4 grams × 4/3 servings

x grams = 16/3

x grams = 5 1/3 grams per serving

The unit rate = 5 1/3 grams per serving

5 0
3 years ago
What is the decimal form of 66 thousandths?​
netineya [11]

Answer:

that would be .066

....

7 0
4 years ago
HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
antoniya [11.8K]

Answer: See explanation

Step-by-step explanation:

1. Step 1: Add up all the numbers.

12 + 15 + 10 + 15 + 11 + 12 + 15 = 90

Step 2: Count how many numbers there are.

There are 7 numbers

Step 3: Divide the sum of the numbers by amount of numbers.

90 ÷ 7 = 12.85

12.85 ≈ 12.9

Mean = 12.9 in tenth place or 13 in whole place

2. The mode is the number that appears the most

15 appears 3 times.

3. 38 / +38

4. 1 week = 7 days

7 × 2 = 14

9 weeks = 9 × 7 = 63

63 × 3 = 189

189 + 14 = 203

203 miles in all

5. Area of 1st rectangle: b × h

4 × 14 = 56

Area of 2nd rectangle: b × h

4 × 14 = 56

56 + 56 = 112

Area of polygon = 112

Hope this helps!

8 0
3 years ago
Read 2 more answers
David sent a survey to 12 classmates. One week laterb9 of the surveys were returned what percent of the surveys were returned
Olegator [25]
9 of 12 were returned which is the same as 9/12. Reduce the fraction...

9/12 = 3/4

To find percent we need the denominator to equal 100 so if we multiply by 25/25...

3/4 × 25/25 = 75/100 =

75%
4 0
3 years ago
Are the listed ordered pairs on the graph for the function:
Solnce55 [7]
The answer would be the second one
5 0
4 years ago
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