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icang [17]
4 years ago
14

2. Which equation is equivalent to x+8 = 21?

Mathematics
1 answer:
lakkis [162]4 years ago
3 0

Answer:

The most obvious one i can think of would be

x = 13

Step-by-step explanation:

x + 8 = 21

x + 8-8 = 21-8

x = 13

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If Josie wants to buy cupcakes and cookies for a party with a budget of
kolezko [41]

Answer:

50 cupcakes, 150 cookies

Step-by-step explanation:

3 0
3 years ago
A growth medium is inoculated with 1,000 bacteria, which grow at a rate of 15% each day. What is the population of the culture 6
Leto [7]
<h2>Number of bacteria after 6 days is 2313</h2>

Step-by-step explanation:

Population after n days is given by

              P_n=P_0(1+r)^n

Initial population, P₀ = 1000

Increase rate, r = 15 % = 0.15

Number of days, n = 6

Substituting

             P_n=P_0(1+r)^n\\\\P_6=1000(1+0.15)^6\\\\P_6=1000(1.15)^6\\\\P_6=1000\times 2.313\\\\P_6=2313

Number of bacteria after 6 days = 2313

7 0
3 years ago
Read 2 more answers
What is 6 85\100 - 5 15\100​
Stells [14]

Answer:

1 7/10

Step-by-step explanation:

After you minus the numbers you simplify them and get 1 and 7/10

6 0
3 years ago
Read 2 more answers
7(3b-1)=2b-26 please help and give me step by step ☺️​
Colt1911 [192]

Answer:

b = -1

Step-by-step explanation:

7(3b-1): 7 goes into the numbers by multiplying. This will give you 21b-7.

So now the equation should be like 21b-7=2b-26.

-7 and 2b swap places, making 21b-2b=7-26. It will give you 19b= -19.

Finally divide the two numbers (-19 / 19) and the solution will be b= -1.

If I didn't make a clear answer or a good explanation, please comment. I sometimes mess up my steps, and this is my first time using this.

5 0
3 years ago
Read 2 more answers
BRAINLIEST!!PLEASE HELP ME
Sauron [17]

divide both sides by a

subtract b from both sides

multiply all terms on both sides by -1
c=b-d/a

5 0
3 years ago
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