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NeTakaya
3 years ago
6

Which equation has no solution?

Mathematics
1 answer:
vovangra [49]3 years ago
6 0
C. -5 + 9 = 22 + 9 - 7 is the answer.

This is because when solved it’s : -52 = 15 which is false therefore there’s no solution.
You might be interested in
Ivan biked 1 whole 2/3 on Monday, 2 wholes 1/3 hours on Tuesday, and 2 wholes 2/3 on Wednesday. What is the total number of hour
GenaCL600 [577]
1 \frac{2}{3} + 2 \frac{1}{3} + 2 \frac{2}{3} =

\frac{3*1+2}{3} +  \frac{3*2+1}{3} +  \frac{3*2+2}{3} =

\frac{3+2}{3} +  \frac{6+1}{3} +  \frac{6+2}{3} =

\frac{5}{3} + \frac{7}{3} + \frac{8}{3} =

=  \frac{20}{3} h

In hours:

20 |_3
(2)....6hs
x60' 
------
120' |_3
(0)....40' 

Answer:
<span>6hs40min

</span>or<span>

</span>\frac{20}{3} hs =  \frac{20}{3} *60' =  \frac{1200}{3} = 400'
<span>
400' = 6*60' = 360' + 40' = 400' (True)
</span>Until

<span>6hs40min</span>
5 0
3 years ago
3a
Jet001 [13]

Answer:

Option D is correct.

VS = 20 units.

Step-by-step explanation:

The complete question is contained in the attached image to this answer.

From the image attached and the additional information about the triangles, it is evident that that triangle VSW is similar to triangle QSR.

Hence, we can write the ratio as

(VS/QS) = (VW/QR)

VS = 2a

QS = 2 × VS = 2 × 2a = 4a

VW = 2a - 2

QR = 3a + 6

(2a)/(4a) = (2a - 2)/(3a + 6)

Cross multiplying,

2a (3a + 6) = 4a (2a - 2)

3a + 6 = 2 (2a - 2)

3a + 6 = 4a - 4

4a - 3a = 6 + 4

a = 10

VS = 2a = 20 units.

Hope this Helps!!!

4 0
3 years ago
Convert 17/3 into a mixed number
Firlakuza [10]

Answer: 5 2/3

17 divided by 3 is 5 2/3

4 0
3 years ago
Read 2 more answers
After calculating the sample size needed to estimate a population proportion to within 0.05, you have been told that the maximum
Svetlanka [38]

Answer:  40000

Step-by-step explanation:

The formula to find the sample size is given by :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2, where p is the prior estimate of the population proportion.

Here we can see that the sample size is inversely proportion withe square of margin of error.

i.e. n\ \alpha\ \dfrac{1}{E^2}

By the equation inverse variation, we have

n_1E_1^2=n_2E_2^2

Given : E_1=0.05   n_1=1000

E_2=0.025

Then, we have

(1000)(0.05)^2=n_2(0.025)^2\\\\\Rightarrow\ 2.5=0.000625n_2\\\\\Rightarrow\ n_2=\dfrac{2.5}{0.000625}=4000

Hence, the sample size will now have to be 4000.

6 0
3 years ago
Alina spent no more than $45 on gas for a road trip. The first gas station she used charged $3.50 per gallon and the second gas
Paraphin [41]

Answer:  3.50x + 4.00y ≤ 45

                0 < y < 11.25

<u>Step-by-step explanation:</u>

3.50x + 4.00y \leq 45\\\\\\\text{Subtract 3.50x from both sides:}\\4.00y\leq -3.50x+45\\\\\\\text{Divide everything by 4.00 (to isolate y):}\\\dfrac{4.00y}{4.00}\leq \dfrac{-3.50x}{4.00}+\dfrac{45}{4.00}\\\\\\y\leq-0.875x+11.25\\\\\\\text{Both x and y must be greater than zero, so:}\\0

8 0
3 years ago
Read 2 more answers
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