3 years ago

sixty more than nine times a number is the same as two less than ten times the number. What’s the number

Mathematics

1 answer:

____ [38]3 years ago

6 0

Step-by-step explanation:

the number unknown=x

9x+60=10x-2

Bring all right hand side of the equation to the left side

9x+60-10x+2=0

-x+62=0

-x=-62

answer x=62

You might be interested in

7.68 Kcal / min to cal/ sec

NNADVOKAT [17]

128 cal/sec hope this helps

4 0

4 years ago

Think about it…A pen costs $1, and a jacket costs $199; both prices increase by $1. Discuss with a shoulder partner how both inc

Vinil7 [7]

Answer: Pen increased by 100%; Jacket increased by 0.5%

Step-by-step explanation:

Pen increased by 100%,

1 ÷ 1 × 100= 100%

While jacket increased by

199 ÷ 200 × 100

=99.5%

99.5%- 100%

=0.5%

8 0

3 years ago

Solve for x. Round to the nearest tenth of a degree, if necessary.

devlian [24]

Answer:

Step-by-step explanation:

do the adding up of all angles you will get a number greater than 59 and divide the number withh the amountt of angles there are which are 3 so divide the number by three and you will end up with 59 and thats the answer

5 0

4 years ago

Priya's cat is pregnant with a litter of 5 kittens. Each kitten had a 30% chance of being chocolate brown. Estimate the probabil

aniked [119]

Answer:

So, the probability is P=0.3087.

Step-by-step explanation:

We know that Priya's cat is pregnant with a litter of 5 kittens, so n=5.

Each kitten had a 30% chance of being chocolate brown.

We get that p=0.3 and q=1-0.3=0.7.

We calculate the probability that exactly 2 kittens will be chocolate brown, so k=2.

We use the formula:

$\boxed{P(X=k)=C_k^n\cdot p^k\cdot q^{n-k}}$

we get

$P(X=2)=C_2^5\cdot 0.3^2\cdot 0.7^3\\\\P(X=2)=\frac{5!}{2!(5-2)!}\cdot 0.03087\\\\P(X=2)=10\cdot 0.03087\\\\P(X=2)=0.3087\\$

So, the probability is P=0.3087.

5 0

4 years ago

27 • a • a • a as an expression?

Alekssandra [29.7K]

the expression is 27a^3 or (3a)^3

5 0

3 years ago

Read 2 more answers