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3 years ago

Can I get help solving this ?

Mathematics

1 answer:

Rom4ik [11]3 years ago

6 0

Answer:

x = -1.4

Step-by-step explanation:

Subtract the right side and simplify.

5 - 6(2 - x) - (x - 14) = 0

5 - 12 + 6x - x + 14 = 0 . . . . parentheses eliminated

7 + 5x = 0 . . . . . . . . . . . . . . terms collected

1.4 + x = 0 . . . . . . . . . . . . . . divide by 5

x = -1.4 . . . . . . . . . . . . . . . . . add the opposite of the constant

_____

Check

5 -6(2 -(-1.4)) = (-1.4) -14

5 - 6(3.4) = -15.4

5 -20.4 = -15.4 . . . . . true. Answer checks OK.

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B. A 50A by 35ft residential

MariettaO [177]

Answer:

1.13 food per square feet

Step-by-step explanation:

Given

Dimension: 50ft by 35ft

Servings = 1975

Required

Determine the amount per servings

First, we calculate the area.

$Area = 50ft * 35ft$

$Area = 1750ft^2$

Next, we calculate the amount per square foot.

This is:

$Rate = \frac{Serivings}{Area}$

This gives;

$Rate = \frac{1975}{1750}$

$Rate = 1.13$

7 0

3 years ago

I need the answer please

alina1380 [7]

Answer:

the answer is c

Step-by-step explanation:

its the only one that makes sense

3 0

3 years ago

A hospital uses cobalt-60 in its radiotherapy treatments for cancer patients. Cobalt-60 has a half-life of 7

NeTakaya

Answer:

We have 197 g of Co-60 after 18 months.

Step-by-step explanation:

We can use the decay equation.

$M_{f}=M_{i}e^{-\lambda t}$

Where:

M(f) and M(i) are the final and initial mass respectively
λ is the decay constant (ln(2)/t(1/2))
t(1/2) is the half-life of Co
t is the time at the final amount of m

$M_{f}=228e^{-\frac{ln(2)}{7} 1.5}$

$M_{f}=197\: g$

<u>Therefore, we have 197 g of Co-60 after 18 months.</u>

I hope it helps you!

4 0

3 years ago

The table shows the distance Allison drove on one day of her vacation. Is the relationship between the distance and the time a p

Anuta_ua [19.1K]

Answer:

we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

Step-by-step explanation:

We know that when 'y' varies directly with 'x', we get the equation

y ∝ x

y = kx

k = y/x

where 'k' is called the constant of proportionality.

In our case, the table shows the distance Allison drove on one day of her vacation.

Time (h) 1 2 3 4 5

Distance (mi) 55 100 165 280 250

using the equation

k = y/x

susbtitute y = 55, x = 1

k = 55/1 = 55

substitute y = 100, x = 2

k = y/x

k = 100 / 2 = 50

substitute y = 165, x = 3

k = y/x

k = 165 / 3 = 55

substitute y = 280, x = 4

k = y/x

k = 280 / 4 = 70

substitute y = 250, x = 5

k = y/x

k = 250 / 5 = 50

It is clear that the value of 'k' does not remain constant.

Therefore, we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

6 0

3 years ago

Please show me this but solved on paper?

kobusy [5.1K]

its about drive its about power we stay hungry we devour pick in the work put in the hours and take whats ours

4 0

2 years ago

Read 2 more answers