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AlladinOne [14]
2 years ago
9

The sum of eight times a number and seven is twice the number

Mathematics
1 answer:
Dovator [93]2 years ago
8 0
8x7=56 

i hope this helps

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What is the value of the expression? Drag and drop the answer into the box to match the expression. 0.9(1/2−2)+0.6
mrs_skeptik [129]
Should be, -0.7, if you follow PEMDAS
6 0
2 years ago
Read 2 more answers
The sum of two polynomials is 10a2b2 – 8a2b 6ab2 – 4ab 2. if one addend is –5a2b2 12a2b – 5, what is the other addend? 15a2b2 –
Brrunno [24]

The other polynomial addend, when the sum of two polynomials is 10a2b2 – 8a2b 6ab2 – 4ab  is 15a²b²- 20a²b + 6ab² - 4ab + 7.

<h3>What is polynomial?</h3>

Polynomial equations is the expression in which the highest power of the unknown variable is n (n is real number).

The sum of two polynomials is,

10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2

The one polynomial addend is,

-5a^2b^2 +12a^2b - 5

Let suppose the other polynomial addend is f(a,b). Thus,

(-5a^2b^2 +12a^2b - 5)+f(a,b)=(10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2)

Isolate the second polynomial as,

f(a,b)=(10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2)-(-5a^2b^2 +12a^2b - 5)\\f(a,b)=10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2+5a^2b^2 -12a^2b + 5

Arrange the like terms as,

f(a,b)=10a^2b^2+5a^2b^2 - 8a^2b -12a^2b+ 6ab^2 - 4ab + 2+5\\f(a,b)=15a^2b^2- 20a^2b + 6ab^2 - 4ab + 7

Hence, the other polynomial addend, when the sum of two polynomials is 10a2b2 – 8a2b 6ab2 – 4ab  is 15a²b²- 20a²b + 6ab² - 4ab + 7.

Learn more about polynomial here;

brainly.com/question/24380382

7 0
2 years ago
There are 29 second graders at recess. Then, 27 third graders and 43 fourth graders join them at recess.
aev [14]

Answer:

99 students

Step-by-step explanation:

To get this answer, you need to add all of the numbers up because the 3rd graders and 4th graders are joining the 2nd graders. 27+43=70. 70+29=99.

8 0
3 years ago
Help please only a and b
vesna_86 [32]

Answer:

A:48 B:45

Step-by-step explanation:

8 0
3 years ago
Number sense which subtraction  sentences show you how to find 15- 7
Mars2501 [29]
You can use addition to solve this problem. 7+_= 15
6 0
3 years ago
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