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3 years ago

What is the coefficient in this equation 3x +9= -15

Mathematics

1 answer:

VLD [36.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

The coefficient is the number before the variable so 3 would be the coefficient in this equation.

Hope this helps!!!

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Which values of "P" and "Q" result in an equation with no solution.

GenaCL600 [577]

$-68x+P=Qx+34\qquad\text{subtract P from both sides}\\\\-68x=Qx+34-P\qquad\text{subtract QX from both sides}\\\\-68x-Qx=34-P\\\\-x(68+Q)=34-P\qquad\text{divide both sides by (68 + Q)}\\\\-x=\dfrac{34-P}{68+Q}\qquad\text{multiply both sides by (-1)}\\\\x=\dfrac{P-34}{68+Q}\\\\\text{The equation has no solution if the numerator is different than 0}\\\text{and the denominator is equal 0.}\\\\P-34\neq0\ \wedge\ 68+Q=0\\\\P\neq34\ \wedge\ Q=-68$

$Answer:\\A:\ P=68\ and\ Q=-68\\C:\ P=-68\ and\ Q=-68\\D:\ P=-34\ and\ Q=-68\\-------------------\\\\For\ P=34\ and\ Q=-68\ we\ have\ \dfrac{34-34}{68-68}=\dfrac{0}{0}\\\\Then\ the\ equation\ has\ infinitely\ many\ solutions.$

4 0

3 years ago

Daniel wants to do 312 practice problems to prepare for an exam. If he wants to do approximately the same number of problems eac

Digiron [165]

The first one because if you set it up like this
(8*12)+(9*24)=
8*12=96
9*24=216
96+216=312

6 0

3 years ago

Read 2 more answers

How am I supposed to answer this?<br> Pls give answers

alekssr [168]

Answer:

OH YES RECIPROCALS

Step-by-step explanation:

So basically what your gonna do is flip the numbers, for example 1/2 would turn into 2/1, if you need help in the others just comment :)

8 0

3 years ago

Carla is making bracelets she wants to put 10 charms on each bracelet charms are sold in packets of 12 what is the least number

liubo4ka [24]

Answer:

Carla can buy 5 packets of charms.

Step-by-step explanation:

5 packets of charms would be able to make 6 bracelets.

*please give me brainliest, i only need three more*

7 0

3 years ago

A circle has a circumference of 150 meters. What is the measure of its radius? Round

Rina8888 [55]

Answer:

R = 23.9

Step-by-step explanation:

formula for circles circumfrence is, C = 2*3.14*R

in this one we have to work backwards so we plug wut we have.

150 = 2* 3.14*R

we divide 150 by 2 so it will be

75 = 3.14R

now we divide 75 by pi so wwe get

23.8732414638 = R

Now we round it to nearest tenth

R = 23.9

5 0

3 years ago