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3 years ago

Help! Help! HELP!! Find the value for x

Mathematics

1 answer:

Alla [95]3 years ago

4 0

Answer:

Step-by-step explanation:

5(21)-12=93

3(21)+30=93

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Help help help help

deff fn [24]

Answer:

b = 12

Step-by-step explanation:

b/3 + 4 = 8

subtract 4 on both sides

b/3 = 4

multiply 3 with 4

b = 12

4 0

3 years ago

This problem please

miskamm [114]

surface areas:

1. 94 ft

2. 96 cm

volumes:

1. 60 ft

2. 42 cm

3 0

3 years ago

HELPPPP I NEED ASAP What region is it A,B,C,D

Maslowich

Region B

The solution of two intersecting lines is the point that both share in common. From a point of view, it is the point where the two lines meet. In this case, the point is in quadrant 1, or Region B.

8 0

3 years ago

Read 2 more answers

At 5pm the total rainfall is 3cm. At 11 pm the total rainfall is 13cm.What is the mean hourly rainfall?

krok68 [10]

Answer:

2.16 cm

Step-by-step explanation:

5 through 11 = 6 hours

total of cms = 13

13/6 = 2.16

7 0

4 years ago

A room contains three urns: u1, u2, u3. u1 contains 3 red and 2 yellow marbles. u2 contains 3 red and 7 yellow marbles. u3 conta

Archy [21]

Answer:

$\dfrac{11}{30}$

Step-by-step explanation:

Urn U1: 3 red and 2 yellow marbles, in total 5 marbles.

The probability to select red marble is $\dfrac{3}{5}=0.6.$

Urn U2: 3 red and 7 yellow marbles, in total 10 marbles.

The probability to select red marble is $\dfrac{3}{10}=0.3.$

Urn U1: 1 red and 4 yellow marbles, in total 5 marbles.

The probability to select red marble is $\dfrac{1}{5}=0.2.$

The probability to choose each urn is the same and is equal to $\frac{1}{3}.$

Thus, the probability that the marble is red is

$\dfrac{1}{3}\cdot 0.6+\dfrac{1}{3}\cdot 0.3+\dfrac{1}{3}\cdot 0.2=\dfrac{1.1}{3}=\dfrac{11}{30}.$

4 0

3 years ago