All categories

3 years ago

45 is 90% of what number?

Mathematics

2 answers:

HACTEHA [7]3 years ago

7 0

<span>X*90/100 =45
X =45*100/90
X =50
Number =50 </span>

kolezko [41]3 years ago

5 0

45 is 90% of 50. 45=.9x

You might be interested in

What is the distance between the points (23 , 11) and (4 , 11) in the coordinate plane?

Bas_tet [7]

Answer:just do 23 minus 6 and that should be the answer because the y-ccordinate is in the same place

Step-by-step explanation:

4 0

2 years ago

4. What is step 2 in the problem-solving process?

Katena32 [7]

A is the answer:):):)

8 0

3 years ago

Read 2 more answers

Solve for x.

Ivahew [28]

ANSWER

$x=\frac{2-\sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

We have

$3x^2-4x-2=0$

Since we cannot factor easily, we complete the square.

Adding 2 to both sides give,

$3x^2-4x=2$

Dividing through by 3 gives

$x^2-\frac{4}{3}x= \frac{2}{3}$

Adding $(-\frac{2}{3})^2$ to both sides gives

$x^2-\frac{4}{3}x+(-\frac{2}{3})^2= \frac{2}{3}+(-\frac{2}{3})^2$

The expression on the Left Hand side is a perfect square.

$(x-\frac{2}{3})^2= \frac{2}{3}+\frac{4}{9}$

$\Rightarrow (x-\frac{2}{3})^2= \frac{10}{9}$

$\Rightarrow (x-\frac{2}{3})=\pm \sqrt{\frac{10}{9}}$

$\Rightarrow (x)=\frac{2}{3} \pm {\frac{\sqrt{10}}{3}$

Splitting the plus or minus sign gives

$x=\frac{2- \sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

3 0

3 years ago

Read 2 more answers

2/3 of a plot is garden.1/5 of the garden is lawn find the fraction of the plot of land that is lawn

Marina CMI [18]

Answer:

2/3 + 1/5 = 13/15

Step-by-step explanation:

5 0

3 years ago

Help please ill give brainliest answer

mihalych1998 [28]

Answer:

ΔLMN ≅ ΔLQP by (SAA)

Step-by-step explanation:

It is given that line (NM) is congruent to the line (PQ), meaning they have the same measure. This is signified by the small red line on each of these sides.

Moreover, it is also given that angle (MNL) is congruent to angle (QPL), this is shown by the red arc around these angles.

Finally one can figure out that angle (NLM) is congruent to angle (PLQ) by the vertical angles theorem. The verticle angles theorem states that when two lines intersect, the opposite angles are congruent.

Thus the two triangles are congruent by side-angle-angle postulate, abbreviated as (SAA).

6 0

3 years ago