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stiks02 [169]
3 years ago
14

Which equation could you use to solve for x in the proportion StartFraction 4 over 5 EndFraction = StartFraction 9 over x EndFra

ction?
Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0

Answer:

x = 9x5 / 4

x = 45/4

(either one)

Step-by-step explanation:

\frac{4}{5} = \frac{9}{x}

Multiple known diagonals and divide by number opposite to unknown number (x).

Hope that helped!!! k

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Find the values of the pronumerals in this diagram. Write down the reason in each case.
timofeeve [1]

Answer:

see explanation

Step-by-step explanation:

a and 85 form a straight angle and are supplementary, thus

a + 85 = 180 ( subtract 85 from both sides )

a = 95

b and 85 are vertical angles and are congruent, thus

b = 85

c and 85 are corresponding angles and congruent, thus

c = 85

c and d are vertical angles and congruent, thus

d = 85

In conclusion

a = 95, b = 85, c = 85, d = 85

5 0
3 years ago
Please help me out!!!!!!!!!!
SOVA2 [1]
4(3)^2-3(3)+7
36-9+7
34
g(3)=34
8 0
3 years ago
The following section is a statement from the rental agreement at a local auto rental agency. “Upon checkout, the fuel level of
marishachu [46]

Answer:

a. Refuel the vehicle before the Renter drives it away.

Step-by-step explanation:

The rental agency representative must check the fuel level, mark it on the check-out sheet and give a copy of the check-out sheet to the renter.  He or she does not, however, need to refuel the vehicle for the renter.

6 0
3 years ago
Read 2 more answers
A random sample of 12 chemists from Washington stats shows an average salary of $39,420 with a standard deviation of $1659. A ra
cestrela7 [59]

Answer:

Step-by-step explanation:

Given that :

μ1 = 39420 ; σ1 = 1659 ; s1 = 12

μ2 = 30215 ; σ2 = 4116 ; s2 = 26

df1 = 12 - 1 = 11

df2 = 26 - 1 = 25

98 % confidence interval of the difference in sample means :

Pooled Variance :

S²p = ((df1 * s1²) + (df2 * s2²)) / (df1 + df2)

((11×1659^2)+(25×4116^2))÷(11+25) = 12605874.75

Standard Error :

√(S²p/n1) + (S²p/n2)

√(12605874.75/12) + (12605874.75/26)

= 1239.0847

8 0
3 years ago
Fr.ee points have a great day ^w^
bekas [8.4K]

Answer:

thank you ^O^

Step-by-step explanation:

8 0
3 years ago
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