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sdas [7]
2 years ago
12

Expand the linear expression 4(10x-4 )

Mathematics
2 answers:
Cloud [144]2 years ago
6 0

Answer:

40x- 16

Step-by-step explanation:

Because 4 times 10x is 40x and 4 times 4 is 16 so the answer is 40x-16

Yuliya22 [10]2 years ago
4 0

Answer:

40x-16

Step-by-step explanation:

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there are 5280 feet in a mile. what part of a mile, in decimal form, will you drive until you reach the exit? pls someone help
garri49 [273]

Answer:

12

Step-by-step explanation:

you have to add everything

7 0
3 years ago
i will give brainliest.The product of 5 and the sum of 12 and a certain number is 10. What is the number​
rjkz [21]

Answer: x=-10

Step-by-step explanation:

5*(12+x)=10

Distribute

60+5x=10

Subtract(60)

5x=-50

x=-10

<em>Hope it helps <3</em>

7 0
3 years ago
Read 2 more answers
Consider the given function of an arithmetic sequence.<br><br> f(n) = -5n + 8
Goshia [24]

Answer:

f(9) = -37

Step-by-step explanation:

f(n) = -5n + 8

f(9) = -5(9) + 8

f(9) = -45 + 8

f(9) = -37

8 0
2 years ago
According to the National Oceanic and Atmospheric Administration, the blue whale is the largest animal on Earth. Blue whales wei
never [62]

Answer: The blue whale's weight is 150 times heavier than the narwhal's weight.

Step-by-step explanation:

Given: Weight of Blue whale = 3\times10^5\text{ pounds}

Weight of Narwhal = 2\times10^3\text{ pounds}

Number of times blue whale's weight  is heavier than the narwhal's weight = =\dfrac{\text{Weight of Blue whale}}{\text{Weight of Narwhal }}

=\dfrac{3\times10^5}{2\times10^3}\\\\=1.5\times10^{5-3}\ \ \ [\dfrac{a^m}{a^n}=a^{m-n}]\\\\=1.5\times10^2\\\\=1.5\times100=150

Hence, the blue whale's weight is 150 times heavier than the narwhal's weight.

5 0
2 years ago
Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32/23 hours during the summer.
butalik [34]

Let us assume that the number of days she practiced the piano to be "d"

Since she practiced 2/3 hours a day, the total number of hours would be: 2/3*d

Now we are given the total number of hours during summer that she practiced  be be equal to 32/23

So we equate 2/3 * d to 32/23 to find d

2/3*d = 32/23

d = (32/23)/ (2/3)

d = (32/23) * (3/2)

d = 48/23 hours

The equation that can be used to find the number of days that she practiced piano during the summer is 2/3*d = 32/23

3 0
3 years ago
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