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3 years ago

How many percent of 70 is 68?

1 answer:

3 0

So percent is parts out of 100 so x%=x/100

68/70
divide totaly
0.9714/1
multiply by 100/100 to make bottom 100
97.1% is the answer

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Solve the given equation 7ex – 9 = 10

maria [59]

Answer: x = 10.18

Step-by-step explanation:

7ex – 9 = 10

(x-9)*ln7 = ln 10

x-9 = 2.30/1.95

x = 10.18

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3 years ago

Evaluate x2 + 3x – 7+ 8 when x = 4.

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

Since they have given you x = 4, simply sub it into the equation,

(4)^2 + 3(4) - 7 + 8

= 29

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3 years ago

Read 2 more answers

Lucy had 3 2/3 gal of paint. After painting a room she had 1 1/4 gal left how many gallons of paint did Lucy use to paint a room

garik1379 [7]

Answer:

$2 \frac{5}{12}$

gallons of paint was used by Lucy.

Step-by-step explanation:

$3\frac{2}{3} - 1\frac{1}{4} = \frac{44}{12} - \frac{15}{12} = \frac{29}{12}$

29/12 = 2 5/12

7 0

3 years ago

In the figure below, BD and AC are diameters of circle P.

elena-14-01-66 [18.8K]

Answer:

$arc\ DC=30^o$

Step-by-step explanation:

The picture of the question in the attached figure

The point P is the center of the circle (the drawing is not a scale )

step 1

Find the measure of angle ∠CPD

we know that

$m\angle CPD+150^o=180^o$ ---> by supplementary angles (form a linear pair)

$m\angle CPD=180^o-150^o=30^o$

step 2

Find the measure of arc DC

we know that

Central angle is the angle that has its vertex in the center of the circumference and the sides are radii of it

$arc\ DC=m\angle CPD$ ----> by central angle

therefore

$arc\ DC=30^o$

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3 years ago

What number is represented by these base 10 blocks?

BabaBlast [244]

answer: 1117

the first block is 1000

the second is 100

the third is 10

then the last few count up to 7

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3 years ago