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3 years ago

What is the solution for -2(x-5)=4

Mathematics

2 answers:

tiny-mole [99]3 years ago

6 0

The answer to your question is x=3

ss7ja [257]3 years ago

3 0

The solution is: x=3

-2(x-5)=4
-2x+10=4
-10 -10
——————
-2x=-6
————
-2 -2

x=3

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What is the range of the function f(x)=5x+4 when the domain is {-2,3,5}?

jonny [76]

Answer:

f (-2)=5×-2+4

= -10+4

= -6

f (3)=5×3+4

=15+4

=19

f (5)=5×5+4

25+4

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2 years ago

The table shows the ratio of caramel corn to cheddar corn in a bag. What is the constant of proportionality?

Anit [1.1K]

For proportionality constant problems, set up the equation as,

$x=Ky$ ,

Where x and y are the two variables you are comparing and K is the proportionality constant. If we take Caramel Corn values as x and Cheddar Corn values as y, and then solve for K for each ratio lines, we will get the same answer. Let's check.

$15=K(10)\\K=\frac{15}{10}= \frac{3}{2}$ ,

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$45=K(30)\\K=\frac{45}{30}= \frac{3}{2}$ .

Hence, the proportionality constant, in this case K, is equal to $\frac{3}{2}$ or 1.5. First answer choice is correct.

ANSWER: 1.5

4 0

2 years ago

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A box of cereal is reduced by 30%. The new box contains 35 ounces. How many ounces did the old box contain?

kumpel [21]

Answer:

45.5

Step-by-step explanation:

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2 years ago

Enrollment in a photography class increased from 25 to 35 students. What was the percent of increase in enrollment?

DaniilM [7]

About 29%.
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3 years ago

Giving 15 points for help!

kolezko [41]

Answer: The correct statements are 'The equation 2n = p should be 2p = n' , 'The actual cost of the onions is $3.00 per pound' and 'Potatoes cost $1.50 per pound.'

Step-by-step explanation:

Here, p represents cost of one potato and n represents the cost of one onion.

And, According to the question, He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18.

Therefore, 6p +3n = 18 ------(1)

And, Onions cost twice as much as potatoes.

Therefore, n= 2p ---------(2)

Putting the values of n from 2) in equation 1),

we get, 6p+3(2p)=18

⇒6p+6p=18 ⇒ 12p =18 ⇒ p = 1.5 dollar.

Thus cost of one potato= $1.5

And cost of one onion = $ 2× 1.5= $ 3.00

Thus with help of above explanation we can say that Options first, third and fifth are correct.

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3 years ago

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