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3 years ago

Linear equation: -1

Mathematics

2 answers:

Anika [276]3 years ago

6 0

Answer:

The right answer is:

the addition property of equality and then the division property of equality

Step-by-step explanation:

Given equation and steps to solve it are:

Step 1: –3x – 5 = 13

Step 2: –3x = 18

Step 3: x = –6

In step two, -5 has to be removed from left hand side of the equation so additional property of equality will be used i.e. adding 5 on both sides

Similarly in the third step, to remove -3 with x , division property of equality will be used i.e. dividing both sides by -3

Hence,

The right answer is:

the addition property of equality and then the division property of equality

Dmitry_Shevchenko [17]3 years ago

6 0

Answer:

A) the addition property of equality and then the division property of equality

Step-by-step explanation:

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Javier begins to save for a new bicycle that costs $415. He already has $140 and plans to save $25 per week. Let w represent the

MrRa [10]

Answer:

It will take 11 weeks of saving to buy the bicycle

Step-by-step explanation:

The Total amount he has saved for the bicycle can be expressed as;

Total amount saved=Initial amount he has+(savings per week×number of weeks)

where;

Initial amount he has=$140

Savings per week=$25

Number of weeks=w

Total amount saved=s(w)

replacing;

s(w)=140+(25×w)

The equation to get the total amount he has saved is;

s(w)=25 w+140....equation 1

Equation 1 above is a linear equation which can be written in the form;

y=mx+c

where;

y=s(w)

m=slope=25

x=the variable=w

c=y-intercept:the value of s(w), when w=o

s(w)=(25×0)+140=140

a). slope=25, y-intercept=140

b). Linear function is one of the form y=mx+c as explained above;

In our case, the linear function will be:

s(w)=25 w+140

c). Now that we have the function s(w)=25 w+140

In order to save to buy the bicycle;

we equate

s(w)=415 and solve for w;

415=25 w+140

25 w=(415-140)

25 w=275

w=275/25

w=11

It will take 11 weeks of saving to buy the bicycle

8 0

3 years ago

A triangular prism is 13 meters long and has a triangular face with a base of 12.6 meters and a height of 16.6 meters. What is t

kolbaska11 [484]

Answer:

1359.54m^3

Step-by-step explanation:

The formula for the volume of a triangular prism is:

1/2( $b \times l )\times h$

b= base

l = length

h= height

Step 1: Plug the numbers into the formula

1/2(12.6*13)*16.6

Step 2: Simplify

163.8*16.6

1359.54

Step 3: Add units

The units used in the question were in meters, so the answer is also in meters.

Volume is always cubed, so it would be to the third power...1359.54m^3

If this answer helped you, I would greatly appreciate if you gave me brainliest :D.

5 0

2 years ago

seven subtracted from 3 times a number is equal to 9 more than 5 times the number. what is the number? _______

Illusion [34]

3x - 7 = 5x + 9
3x - 5x = 9 + 7
-2x = 16
x = 16/-2
x = -8 <== ur number

6 0

3 years ago

Can someone help me with this

spin [16.1K]

Answer:

Options A, C, and F

Step-by-step explanation:

4 0

3 years ago

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Marion is driving between two towns that are close together. If she drives 1⁄5 the trip in 15 minutes, what is her rate per hour

netineya [11]

Answer:

4/5 in one hour

Step-by-step explanation:

15 minutes is 1/4 of an hour so all you need to do is multiply one 1/5 by four

tell me if im wrong plz

7 0

2 years ago

Read 2 more answers