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3 years ago

Yes no

Mathematics

1 answer:

ikadub [295]3 years ago

3 0

Answer:

I am not going for the next two days and I'm going through the process and I'm trying not really into the process to make a good

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How many solutions are there to the equation below?<br><br> 4(x – 5) = 3x + 7

lys-0071 [83]

Answer:

one solution

Step-by-step explanation:

4(x - 5) = 3x + 7

4x - 20 = 3x + 7

4x - 3x = 7 + 20

x = 27

8 0

3 years ago

Read 2 more answers

7th Grade Math <br><br> Need help with both 6 and 7

barxatty [35]

Answer:

Part 6)

case a) $P(odd)=\frac{1}{2}=0.5=50\%$

case b) $P(less\ than\ 3)=\frac{0}{8}=0=0\%$

Part 7)

case a) $P(yellow)=\frac{3}{20}=0.15=15\%$

case b) $P(green\ and\ red)=\frac{1}{20}=0.05=5\%$

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.

The size of the sample space is the total number of possible outcomes

The event space is the number of outcomes in the event you are interested in.

Let

x------> size of the event space

y-----> size of the sample space

$P=\frac{x}{y}$

Part 6)

case a) P(odd)

In this problem we have

$x=4$

$y=8$

substitute

$P=\frac{4}{8}=\frac{1}{2}=0.5=50\%$

case b) P (less than 3)

In this problem we have

$x=0$

$y=8$

substitute

$P=\frac{0}{8}=0=0\%$

Part 7)

case a) P(yellow)

In this problem we have

$x=3$

$y=20$

substitute

$P=\frac{3}{20}=0.15=15\%$

case b) P(green and red)

$P(green)=\frac{5}{20}$

$P(red)=\frac{4}{20}$

therefore

$P(green\ and\ red)=\frac{5}{20}*\frac{4}{20}=\frac{20}{400}=\frac{1}{20}=0.05=5\%$

8 0

3 years ago

Simplify: 3a2b + 5ab – 4ab + ab2 + 8a2b

Nataly [62]

Answer:

ab • (11a + b + 1) If its not im really sorry

Step-by-step explanation:

STEP one

(((((3•(a2))•b)+5ab)-4ab)+(a•(b2)))+(23a2•b)

STEP Two

((((3a2 • b) + 5ab) - 4ab) + ab2) + 23a2b

STEP 3

STEP 4

Pulling out like terms

4.1 Pull out like factors :

11a2b + ab2 + ab = ab • (11a + b + 1)

3 0

3 years ago

Read 2 more answers

What is the opposite of (x+120)?

erma4kov [3.2K]

Answer:

-(x+120)

Step-by-step explanation:

6 0

2 years ago

Alex invests £3175 for n years into a savings account.

kozerog [31]

Answer:

n = 14

Step-by-step explanation:

3175(1+2.75%)^n=4641.83 we input this in the calculator and we get n = 14

6 0

3 years ago