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serg [7]
2 years ago
15

Samantha evaluates the expression -5.3 + 7.9 and gets an answer of 2.4.

Mathematics
1 answer:
lys-0071 [83]2 years ago
8 0

Answer:

D.

Step-by-step explanation:

-5.3 rounds up to -5

7.9 rounds up to 8

the sum of the two rounded is 3

her answer of 2.4 rounds to 2, not 3

so her answer is not reasonable

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What was the total production of gasoline and kerosene combined (in Barrels)
Elina [12.6K]

The amount of kerosene and gasoline produced is an illustration of equations.

<em>44.4 million barrels of gasoline and kerosene are produced</em>

Let

<em />x \to<em> Proportion of kerosene</em>

<em />y \to<em>  Proportion of Gasoline</em>

<em />

So:

x = 40\%

y = 34\%

Total = 60\ million ---- total barrels produced

The amount of Kerosene produced is:

Kerosene =x \times Total

Kerosene =40\% \times 60\ million

Kerosene = 24\ million

The amount of Gasoline produced is:

Gasoline  =y \times Total

Gasoline  =34\% \times 60\ million

Gasoline  =20.4\ million

So, the total production of both is:

Total = Kerosene + Gasolene

Total = 24\ million + 20.4\ million

Total = 44.4 million

<em>Hence, 44.4 million barrels of gasoline and kerosene are produced</em>

Read more about equations at:

brainly.com/question/21105092

8 0
2 years ago
7 ten thousands equals how many thousands
algol [13]
7 10 thousands is equal to 70 thousand
6 0
3 years ago
Read 2 more answers
Dorian has two bags. Each bag has the letters A, B, and C written on little pieces of paper inside of it. He draws one letter fr
anyanavicka [17]
I believe 1/3 since there is three of them. 
But don't take my full word for it.
8 0
3 years ago
Math help ( 20 pts )
Nimfa-mama [501]
A) The answer is 24 m

x - the distance from the spot on the beach to the parking lot

Triangles that are divided by x distance is similar, and therefore:
x : 18 = 32 : x
x * x = 18 * 32
x² = 576
x = √576
x = 24

Thus, the distance <span>the spot on the beach from the parking lot is 24 m.
</span>

b) The answer is 40 m.

x - the distance from the spot on the beach to the parking lot
b - distance from the parking lot to the refreshment stand.

First, find the horizontal leg (a) of the biggest right triangle. According to the Pythagorean theorem:
a² + b² = c²
a = ?
b = ?
c = 32 m + 18 m = 50 m

Find a from the right triangle which sides are a (as a hypotenuse), x, and 18 m.
x² + 18² = a²
x = 24
24² + 18² = a²
576 + 324 = a²
900 = a²
a = √900
a = 30 m

Now, find b:
a² + b² = c²
30² + b² = 50²
900 + b² = 2500
b² = 2500 - 900
b² = 1600
b = √1600
b = 40 m

Thus the distance from the parking lot to get the refreshment stand is 40 m.
6 0
3 years ago
What is the surface area of the triangular prism?​
IrinaK [193]

Answer:

444m²

Step-by-step explanation:

6×10 + 24×6 + (24×10)

(6 \times 10) + (24 \times 6) + 2 ( \frac{24 \times 10}{2} ) = 60 + 144 + 2(120) = 444 {m}^{2}

3 0
2 years ago
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