3 years ago

Is the expression 5 + 3x 2always equal to the expression 4x? Explain your answer.

Mathematics

1 answer:

Anna71 [15]3 years ago

8 0

5+3x=4x
only when
x=5
The two expression are only equal at x=5

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There are 36 cupcakes. 9 of them are chocolate. What percent are chocolate?

inn [45]

Answer:

25%

Step-by-step explanation:

9/36 = 0.25

25% are chocolate.

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3 years ago

In the solution, 3b + 9c = 3(b + 3). What should be done to make it CORRECT?

stiks02 [169]

Answer:

The second term of the binomial factor should be 3c instead of 3.

Step-by-step explanation:

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larisa86 [58]

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Step-by-step explanation:

We will use segment formula to find the coordinates of point that will partition our line segment PQ in a ratio 3:1.

When a point divides any segment internally in the ratio m:n, the formula is:

$[x=\frac{mx_2+nx_1}{m+n},y= \frac{my_2+ny_1}{m+n}]$

Let us substitute coordinates of point P and Q as:

$x_1=-8$ ,

$y_1=-4$

$x_2=4$

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$n=1$

$[x=\frac{(3*4)+(1*-8)}{3+1},y=\frac{(3*12)+(1*-4)}{3+1}]$

$[x=\frac{12-8}{4},y=\frac{36-4}{4}]$

$[x=\frac{4}{4},y=\frac{32}{4}]$

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Therefore, point (1,8) will partition the directed line segment PQ in a ratio 3:1.

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3 years ago

Terry is filling spherical water balloons with a faucet that puts out 100 cm^3 of water per second. At least rate, it takes Terr

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its 5 cm

Step-by-step explanation:

its what I got off of Khan

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3 years ago

Y= 175÷x+z when x=17 and z=8

denpristay [2]

18.29
175 divided by 17 plus 8, use PEMDAS

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3 years ago