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Natali [406]
4 years ago
8

Write a two-step equation that involves multiplication and subtraction, includes a negative coefficient, and had a solution of x

= 7
Mathematics
1 answer:
Contact [7]4 years ago
7 0
9x - 21 = -42
This should be the type of equation that you're looking 4
You might be interested in
Find two consecutive odd integers whose product is 323
Harrizon [31]
Use a let statement 
first
let x and x + 2 be the number so you write it like this
<u>let x = the first consecutive integer
</u><u>let x + 2 = the second consecutive integer
</u>
second
x(x+2)=323
x^2 + 2x = 323
        -323  -323
x^2 + 2x -323 = 0

third
try to factor -323 so it is 19 and -17
(x + 19) (x - 17) = 0
x = 19 
x = -17

hope this help

4 0
3 years ago
I need help with this question
gladu [14]

Answer:

I believe it is:

I = B

II = G

III = F

IV = C

8 0
3 years ago
a news report say that 28% of high school students pack their lunch. your high school has 600 students. how many students in you
Rama09 [41]

28 % is actually written as .28 , so it would be written like this ,  600 * 28 = 168.00 = for more simplified form it would be , 168 students    ,  hope this helps
7 0
3 years ago
Read 2 more answers
When playing basketball, Jason makes 80% of his free throws. In a recent game Jason attempted 20 free throws. How many free thro
zheka24 [161]

Answer:

<u>It's expected that Jason make 16 out of 20 free throws</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Jason's free-throw scoring average = 80%

2. In a recent game Jason attempted 20 free throws. How many free throws would you expect him to make?

Free throws expected to make by Jason = 20 * 80%

<u>Free throws expected to make by Jason = 16</u>

8 0
3 years ago
Suppose that the bacteria in a colony grow unchecked according to the Law of Exponential Change. The colony starts with 1 bacter
inn [45]

Answer: There are 2.25×10³⁴ bacteria at the end of 24 hours.

Step-by-step explanation:

Since we have given that

Number of bacteria initially = 1

It triples in number every 20 minutes.

So, \dfrac{20}{60}=\dfrac{1}{3}

So, our equation becomes

y=y_0e^{\frac{1}{3}k}\\\\3=1e^{\frac{1}{3}k}\\\\\ln 3=\dfrac{1}{3}k\\\\k=\dfrac{1.099}{0.333}=3.3

We need to find the number of bacteria that it will contain at the end of 24 hours.

So, it becomes,

y=1e^{24\times 3.3}\\\\y=e^{79.1}\\\\y=2.25\times 10^{34}

Hence, there are 2.25×10³⁴ bacteria at the end of 24 hours.

3 0
3 years ago
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