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saw5 [17]
3 years ago
6

Evaluate the expression when a=

Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

\frac{2}{15}

Step-by-step explanation:

Substitute the values for a and c into the expression

- 2c + a

= - 2× \frac{3}{10} + \frac{11}{15}

= - \frac{3}{5} + \frac{11}{15}

= - \frac{3(3)}{5(3)} + \frac{11}{15}

= - \frac{9}{15} + \frac{11}{15}

= \frac{2}{15}

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Belle walks 7/10 mile each morning, and 1, 4/10 miles each evening.
kow [346]

Answer:

10.5 miles.

Step-by-step explanation:

If she walks 7/10 of a mile each morning, and 1, 4/10 of a mile each day, Belle walks a total of 2 1/10 of a mile each day (2.1) miles each day)

We can just multiply the amount of miles per day by 5, (2.1 x 5) and we get 10.5 miles total.

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See the attachment below for the question.
tangare [24]

Answer:

The correct answer is third option

x = 3

Step-by-step explanation:

It is given that,

4ˣ = 8⁽ˣ ⁻ ¹⁾

<u>To find the value of x</u>

4ˣ  = (2²)ˣ

8⁽ˣ ⁻ ¹⁾ = (2³)⁽ˣ ⁻ ¹⁾

4ˣ = 8⁽ˣ ⁻ ¹⁾

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2²ˣ = 2⁽³ˣ ⁻ ³⁾

2x = 3x - 3

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The correct answer is third option

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5 0
3 years ago
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Equation parallel to y = 3x + 2 and passing through (1, 1)
Kisachek [45]

Answer:

y = 3x - 2

Step-by-step explanation:

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3 years ago
When think of a number double it<br> and add five and get 13 What the number I<br> Thought
aev [14]

Let the no be x

ATQ

\\ \sf\longmapsto 2x+5=13

\\ \sf\longmapsto 2x=13-5

\\ \sf\longmapsto 2x=8

\\ \sf\longmapsto x=\dfrac{8}{2}

\\ \sf\longmapsto x=4

3 0
3 years ago
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