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Nikitich [7]
3 years ago
7

What is the value of b? ​ 0.4(3b+10)=19 ​

Mathematics
2 answers:
svet-max [94.6K]3 years ago
7 0

Hello!!


Isolate the variable by dividing each side by factors that don't contain the variable.


Your answer is 12.5.


Hope that you pass your test!!


Aloiza [94]3 years ago
6 0

0.4(3b + 10) = 19

First: Distribute

0.4 x 3b = 1.2b

0.4 x 10 = 4

1.2b + 4 = 19

Second: Subtract 4 from both sides

+ 4 - 4 cancels out

19 - 4 = 15

1.2b = 15

Third: Divide 1.2b on both sides

1.2b/1.2 cancels out

15/1.2 = 12.5

Answer: b = 12.5

Hope this Helps!!

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On Saturday, 150 people at a movie theater purchased popcorn, and 350 people did not purchase popcorn. What percentage of people
MaRussiya [10]

Answer:

<u>70%</u> of people did not order popcorn at the movie theater on Saturday.

Step-by-step explanation:

first, add to get the total amount of people

150 + 350 = 500

now that we have the total, divide the people that did not buy popcorn by the total amount of people

350/500 = 0.7

then, multiply that by 100

0.7 x 100 = 70

your final answer would be 70%

7 0
3 years ago
What are the first three terms of the sequence represented by the recursive formula
Dimas [21]

Answer: B. 0.25, 3.75, 5.2

Step-by-step explanation:

Since, the given sequence, a_n= n^2 -a_{n-1}

And, a_5=14\frac{1}{4}

On substituting n=5 in the given recursive formula,

We get, a_5=5^2-a_{5-1}\implies a_5=25-a_4\implies 14\frac{1}{4}= 25-a_4\implies a_4=10\frac{3}{4}

For, n=4 a_4=4^2-a_{4-1}\implies a_4=16-a_3\implies 10\frac{3}{4}= 16-a_3\implies a_3=5\frac{1}{4}\implies a_3=5.25

For, n=3 a_3=3^2-a_{3-1}\implies a_3=9-a_2\implies 5.25= 9-a_2\implies a_2=3.75

For, n=2 a_2=2^2-a_{2-1}\implies a_2=4-a_1\implies 3.75= 4-a_1\implies a_1=0.25

Thus, First second and third terms are,

a_1=0.25, a_2=3.75 and  a_3=5.25.

5 0
3 years ago
Read 2 more answers
Use the partial quotients algorithm to find the value of 966 divided by23
Tatiana [17]

Answer: The answer is 42!

Step-by-step explanation:

I just used my calculator haha :)

6 0
3 years ago
Read 2 more answers
Mariah and Clarence are planning for a dinner party. The grocery store is selling a -pound turkey for . Mariah states, "that mea
geniusboy [140]

This question is incomplete

Complete Question

Mariah and Clarence are planning for a dinner party. The grocery store is selling a 25- pound turkey for $60 . Mariah states, "that means it costs $2.40 per pound of turkey." Clarence states, "that means $2.4 pounds of turkey cost $1 Is Mariah's statement, Clarence's statement, both statements, or neither statement correct?

Answer:

Mariah's statement is correct

Step-by-step explanation:

Mariah and Clarence are planning for a dinner party. The grocery store is selling a 25- pound turkey for $60 .

From the statements given above, we are to find the unit rate . This means the cost of the turkey per pound

Hence, the calculation is given below:

25 pounds of turkey = $60

1 pound of turkey = x

Cross Multiply

25 × x = $60 × 1

x = $60/25

x = $2.40

1 pound of turkey cost $2.40

Therefore, Mariah's statement is correct

6 0
3 years ago
PLEASE HELP WITH ATTACHED PHOTO:)
Thepotemich [5.8K]

Answer:

a. 0.69

b. 0.13

c.0.56

Step-by-step explanation:

Total number = 100

a) either means students with either option are valid

69/100 = 0.69

b) both means each student has done both math and english

=13/100 = 0.13

c) Only one means has done one subject and not both classes. We have 23 for math and 33 for english (this is according to your venn diagram)

23+33=56

one subject =56/100 = 0.56

4 0
3 years ago
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