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S_A_V [24]
2 years ago
9

Evaluate the expression 10x - 4y if x = -2 and y = 1.

Mathematics
1 answer:
lyudmila [28]2 years ago
6 0

For this just simply substitute the values with the corresponding variable.

10(-2)-4(1)

-20-4

-24 is your answer for the expression

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the number of grams a woman should eat in a day to maintain her weight is proportional to her weight. a woman weighing 102 pound
vitfil [10]
Given:
grams of fat : 34 grams TO weight of woman : 102 pounds
grams of fat : ? TO weight of woman : 180 pounds

This is a proportion problem: 34 grams to 102 pounds.

We first have to convert a unit of measure to another to maintain uniformity of measure. let us convert pounds to grams:

102 pounds * 453.592 grams / pound = 46,266.384 grams
180 pounds * 453.592 grams / pound = 81,646.560 grams

34 grams to 46,266.384 grams = x grams to 81,646.560 grams

proportion: a:b = c:d where ad = bc

34 grams * 81,646.560 grams = x * 46,266.384 grams
2,775,983.04 grams² = x * 46,266.384 grams
2,775,983.04 grams² ÷ 46,266.384 grams = x
60 grams = x 

A woman weighing 180 pounds should eat 60 grams of fat to maintain her weight.
7 0
3 years ago
Divide. (334)÷(−212) Enter your answer as a mixed number, in simplified form, in the box.
Mandarinka [93]

Answer:

-1.575, or -1 575/1000, or -1 23/40

Step-by-step explanation:

Simplify the problem slightly by prefacing it with " - " as follows:

    334

- ----------- = -1.575  =  -1 23/40

     212

3 0
3 years ago
Read 2 more answers
Detroit received 8 over 5 inches of snow in the morning. The city recorded of an 3 over 5inch of snow in the evening. What was t
xenn [34]

Answer:

11/5 inches

Step-by-step explanation:

total snowfall for the day = snowfall in morning + snowfall in evening

= 8 over 5 + 3 over 5 (all in inches)

= 8/5 + 3/5 (all in inches)

Since the denominators are the same (5), we can simply add the numerators up while keeping the denominator

(8/5 + 3/5) inches= (8+3)/5 inches = 11/5 inches = total snowfall for the day

7 0
2 years ago
Which ten thousand does 117,290 round to
Leni [432]

Answer:

120,000

Step-by-step explanation:

because seven in greater than 5 so it would round up

3 0
2 years ago
Sheri's freezer is 2 feet wide, 6 feet long, and 2 feet deep. What's the volume of her freezer? 
vivado [14]
The answer is B. 24 cubic feet
6 0
3 years ago
Read 2 more answers
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