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zvonat [6]
3 years ago
8

Simplify. −7 + {12 + 3[30 − 5(1 + 4)]}

Mathematics
1 answer:
Igoryamba3 years ago
8 0

Answer:

-7+(12+3(30-5(1+4)= 20

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How to simplify 4(2a)+7(-4b)+(3×c×5)
maw [93]
→ Solutions

⇒ Simplify <span><span><span>4<span>(<span>2a</span>)</span></span>+<span>7<span>(<span>−<span>4b</span></span>)</span></span></span>+<span><span>3c</span><span>(5)</span></span></span><span>⇒ </span><span><span><span><span><span>8a</span>+</span>−<span>28b</span></span>+<span>15<span>c

Answer
 </span></span></span></span><span>⇒ </span><span>8a−28b</span><span>+</span><span>15c</span>
5 0
3 years ago
Read 2 more answers
please help!!! the study conducted was 6 days long: there was 72mm of plant food and it decreased an equal amount each day.
Anuta_ua [19.1K]

Answer:

f(x) = 72 - 12x

Step-by-step explanation:

No. of days of study = 6

Amount of food to use for the 6 days = 72 mm

Given that equal amount of food was used each day, amount used per day = \frac{72}{6} = 12 mm

This would enable us derive a function for the amount of food remaining f(x), which can be expressed as a function of the number of days that have passed, (x).

Thus, we would have:

f(x) = 72 - 12x

Let's check if this equation expresses the relation of the function well.

At the end of day 1, if we used, 12mm, we would have 72 - 12 = 60mm of food remaining.

If we replace x in the equation we derived, we would get the same 60mm as the amount of food remaining.

If you try 2, 3, 4, 5 days, you'd get same thing.

At the end of the study, after the 6th day, the food would remain nothing.

Replace 6 for x in the relation function derived, you'd get a value of 0.

6 0
3 years ago
Is 10/9 closer to 0 1/2 or 1
Viktor [21]
The answer is the number 1.
5 0
3 years ago
Complete the table Y=6x-4
viktelen [127]

Answer:

With Two points is enough to describe this graph

\left[\begin{array}{ccc}\frac{4}{6} &0\\0&-4\\\end{array}\right]

Step-by-step explanation:

Interception with Y axis (y=0), thus we have the following equation:

0=6*x+4

x=4/6

The point for this is (4/6 , 0)

Interception with x axis (x=0), thus we have the following equation:

Y=4*0-4

y=-4

The point for this is (0, -4)

4 0
3 years ago
Please help me i really need it<br><br><br> 3y + 4 + 10 ÷ 4x x 12 ÷ 9 = ?
nekit [7.7K]
I got 3y + 4 + 10x / 3
7 0
3 years ago
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