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Svetllana [295]
3 years ago
14

Solve for x. 9 km 12 km X

Mathematics
1 answer:
Mandarinka [93]3 years ago
7 0

Answer:

15km

Step-by-step explanation:

\rm \mapsto \:  {9}^{2}  +  {12}^{2}  =  {x}^{2}  \\  \rm \mapsto \:  {x}^{2}  = 81 + 144 \\  \rm \mapsto \:  {x }^{2}  = 225 \\  \rm \mapsto \: x =  \sqrt{225}  \\  \rm \mapsto \: x = 15

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On Thursday, rrr centimeters of rain fell on Deborah's garden. On Saturday, 15\%15%15, percent more rain fell on the garden.
xenn [34]

Answer:

Step-by-step explanation:

Complete question

<u>On Thursday, r centimeters of rain fell on Deborah's garden. On Saturday, 15% more rain fell on the garden. </u>

<u>The expression r+0.15r describes the number of centimeters of rain Deborah's garden got on Saturday. We can also use the expression 1.15r to represent the same quantity. </u>

<u>Match each amount in the situation with the expression that represents it.</u>

<u />

Since we have given that

Let amount of rainfall on Deborah's garden on Thursday be 'r'.

According to question, 15% more rainfall on the garden on Saturday.

So, Amount of rainfall on Saturday would be

r+\dfrac{15}{100}r\\\\=r+0.15r\\\\=1.15r

Hence, Deborah got 1.15r amount of rainfall on Saturday.

4 0
4 years ago
Read 2 more answers
The area of one fabric is 4.85 square what is the area of a quilt made with 10.2 fabric squares​
Sindrei [870]

10 x 10 = 2_{10}

since 1 square equals 4.85 sq inches we can multiply 4.85 with 100

4.85 x 100 = 485

so, your answer is <u>485 </u>

hope this helps!

5 0
4 years ago
The grades in a statistics course for a particular semester were as follows:
ziro4ka [17]

Answer:

Test Statistic = 10

Critical Value = 9.488

Step-by-step explanation:

Given :

Grade A _ B _ C _ D _ F

_____14 _ 18 _32_ 20_16

H0 : distribution of grade is uniform

H1 : Distribution of grade is not uniform

Using the Chisquare statistic :

χ² = (observed - Expected)² / Expected

The expected value :

(14+18+32+20+16) / 5 = 20

χ² = (14-20)^2 / 20 + (18-20)^2 / 20 + (32-20)^2 / 20 + (20-20)^2 / 20 + (16-20)^2 / 20

χ² statistic = 10

The χ² critical at df = (n - 1) = 5 - 1 = 4

χ² Critical(10, 4) = 9.488

8 0
3 years ago
If you're traveling 75 mph how many miles will you go in an hour
Lena [83]
MPH stands for Miles Per Hour, so if you're traveling at 75 MPH, that's 75 miles per hour, so 75.
4 0
4 years ago
The percent increase from 8 to 14 equal to the percent decrease from 35 to x. what is the value of x
zhenek [66]

Answer:

x= 20 and the decreased value is 35-20=15

Step-by-step explanation:

percent increase = 6/14*100= 43

Percent decrease = 35-x/35*100

6/14*100=35-x/35*100

6/14= 35-x/35

6* 35= 14(35-x)

210= 490-14x

14x= 490-210

14x= 280

x= 280/14= 20

3 0
3 years ago
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