PLEASEEEE HELP!!! Which equation should you solve to find x?

Mathematics

2 answers:

jeyben [28]2 years ago

6 0

Answer: A

Step-by-step explanation:

A️Ex

ziro4ka [17]2 years ago

3 0

Answer:

Step-by-step explanation:

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Help me on number problem 5 please

Aleksandr-060686 [28]

Answer:

x = 10

Step-by-step explanation:

If f(x) equals 3x-7 and also equals 23, then you can set 3x-7 equal to 23

3x - 7 = 23

3x = 30

x = 10

5 0

3 years ago

Read 2 more answers

A photo of a mosquito in a science book is magnified to 635% of the mosquito's actual size.If the mosquito is 16 millimetres lon

alexdok [17]

Answer:

The length of the mosquito in the picture is 117.6 mm.

Step-by-step explanation:

This question can be solved using a rule of three.

The real size of the mosquito is 16 mm, which is 100% = 1.

In the picture, the size is magnified 635%, so it is 100+635 = 735% = 7.35. So

16mm - 1

x mm - 7.35

x = 7.35*16 = 117.6

The length of the mosquito in the picture is 117.6 mm.

4 0

3 years ago

What is the value of x?<br> Please show the steps

nordsb [41]

Let D be the endpoint of the angle bisector opposite A on lying on side BC. The angle bisector theorem states that the ratio of BD to CD is equal to the ratio of AB to AC. In this case, you have

$\dfrac{2x-1}{3x}=\dfrac9{15}$

(This is the same equation that you have, it's just rearranged.)

Multiply both sides by $3x$ and 15.

$15\times3x\times\dfrac{2x-1}{3x}=15\times3x\times\dfrac9{15}$
$15(2x-1)=3x\times9$

Now you can solve for $x$ .

$30x-15=27x$
$3x=15$
$x=5$