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Vladimir79 [104]
3 years ago
15

What is the value of x

Mathematics
1 answer:
Rufina [12.5K]3 years ago
4 0

answer:

d: 30

all angles in a triangle have a sum of 180 degrees. Just add 50 and 100 (so 150) and do 180-150=30.

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0.719 rounded to the nearest hundredth
lapo4ka [179]

Answer:

0.72

Step-by-step explanation:

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4 0
3 years ago
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20 + 27x + 9x^2 = (?) (3x + 5)
DiKsa [7]

Answer:

(3x + 4)

Step-by-step explanation:

9x²+27x+20 can be factored out to (3x + 4)(3x + 5)

7 0
3 years ago
Working independently, Tina can do a certain job in 12 hours. Working independently, Ann can do the same job in 9 hours. If Tina
Leona [35]

Answer:

Ann would need 3 h to complete the remainder of the Job.

Step-by-step explanation:

Step 1.

The "speed" that each girl has to do the work is determined as:

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Step 2.

The amount of work done by Tina in 9 hours, is obtain multiplying by the "speed" calculated in step 1:

Amount of work done= 8 h*\frac{1}{12h} = \frac{2}{3}. It means that <em>Tina completes two thirds of the work in 9 h.</em>

Step 3.

The remaining job is calculated as 1-\frac{2}{3}=\frac{1}{3}. It means that <em>still remains is one third of the job to be completed</em>.

Step 4.

The time required for Ann to complete the job is calculated dividing the remaining of the job by the "speed" of Ann to do the job.

\frac{\frac{1}{3}}{\frac{1}{9h}}=3h. It means that <em>Ann would complete the job in another 3 hours</em>.

3 0
3 years ago
Lionel walks 3/5 mile in 1/3 of a day. Cristiano walks 5/8 mile in 2/6 of a day.
Scrat [10]

Answer:

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Step-by-step explanation:

2/6 = 1/3  so we just need to know what is more 3/5 or 5/8

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25 > 24  so 5/8 > 3/5

so <u>Cristiano walked farther</u>

They walk for 1/3 of a day so in a whole day they walk three times the distance

3/5 • 3 = 9/5 = 1 4/5 = 1.8 mile

5/8 • 3 = 15/8 = 1 7/8 = 1.875 mile

4 0
3 years ago
 Given that ∠ABC ≅ ∠DBE, which statement must be true? ∠ABC ≅ ∠ABD ∠ABD ≅ ∠CBE ∠CBD ≅ ∠DBE ∠CBD ≅ ∠ABC ​
Doss [256]

Answer:

ABD ~= CBE

Step-by-step explanation:

4 0
3 years ago
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