Mathematics : asked on sulemmaa
 11.10.2022

(-3)*(2a+b)-4(b+a) help plez

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09.07.2023, solved by verified expert
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-10a - 7b

Step-by-step explanation:

Solving

(-3)*(2a+b)-4(b+a) help plez, №18010267, 11.10.2022 02:13(-3)*(2a+b)-4(b+a) help plez, №18010267, 11.10.2022 02:13(-3)*(2a+b)-4(b+a) help plez, №18010267, 11.10.2022 02:13(-3)*(2a+b)-4(b+a) help plez, №18010267, 11.10.2022 02:13

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Mathematics
Step-by-step answer
P Answered by Specialist

-10a - 7b

Step-by-step explanation:

Solving

(-3)(2a)+(-3)(b)+(-4)(b)+(-4)(a)-6a-3b-4b-4a(-6a-4a)+(-3b-4b)-10a-7b

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Mathematics
Step-by-step answer
P Answered by PhD

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Approximately it is aqual to 1300kg

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image 

The answer is in the image 
Mathematics
Step-by-step answer
P Answered by PhD

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

Mathematics
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P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

Let the father's age be x and son's be y

10 years before-

Father age=x-10

sons age=y-10

Given,

x-10=10(y-10)

x-10=10y-100

Given present age of father=40

therefore,

x=40

40-10=10y-100

10y-100=30

10y=130

y=130/10

y=13

Therefore present age of son=13years

Mathematics
Step-by-step answer
P Answered by PhD

Cost of 6 gallons =$15

Cost of 1 gallon =15/6

                           =$2.5

Cost of 7 gallons=$2.5 * 7

                           =$17.5

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