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elena55 [62]
3 years ago
10

Can someone help me solve a math problem

Mathematics
1 answer:
mash [69]3 years ago
8 0
Sure what do you need help with...
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A truck was carrying a load of 458 pounds of gravel. Another 231 pounds of gravel was loaded onto the truck.
Mila [183]

Answer:

A. Olivia is correct.

Step-by-step explanation:

If the total amount of gravel stated is 689 pounds and you want to check your answer, you can subtract one of the two trucks from the total. Which would be either 689 - 231 or 689 - 458. Therefore, A is the correct answer.

6 0
3 years ago
SEE IMAGE PLEASE !!!
inysia [295]
Center of rhombus bisects 90°.

Sum of angles in triangle = 180°
x + x + 14 + 90 = 180
2x + 104 = 180
2 (x + 52) = 180
x = (180 ÷ 2) - 52
x = 90 - 52
x = 38°


4 0
2 years ago
Read 2 more answers
How much is 50 dollars
Black_prince [1.1K]
Answer
50 dollars
Explanation
4 0
2 years ago
Read 2 more answers
Find the slope of the line that passes through (-49, 68) and (-43, 67).
Arte-miy333 [17]

Answer:

Slope = 67 - 68 / -43 + 49

= -1 / 6

= - 1/6

Hope this helps

8 0
3 years ago
In the theory of learning, the rate at which a subject is memorized is assumed to be proportional to the amount that is left to
babymother [125]

Answer:

dA/dt = k1(M-A) - k2(A)

Step-by-step explanation:

If M denote the total amount of the subject and A is the amount memorized, the amount that is left to be memorized is (M-A)

Then, we can write the sentence "the rate at which a subject is memorized is assumed to be proportional to the amount that is left to be memorized" as:

Rate Memorized = k1(M-A)

Where k1 is the constant of proportionality for the rate at which material is memorized.

At the same way, we can write the sentence: "the rate at which material is forgotten is proportional to the amount memorized" as:

Rate forgotten = k2(A)

Where k2 is the constant of proportionality for the rate at which material is forgotten.

Finally, the differential equation for the amount A(t) is equal to:

dA/dt = Rate Memorized - Rate Forgotten

dA/dt = k1(M-A)  - k2(A)

7 0
3 years ago
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