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3 years ago

.b) Lấy được ít nhất một quả cầu trắng

Mathematics

1 answer:

TEA [102]3 years ago

8 0

Answer:

<h2>cant understand this language so sorry</h2>

Step-by-step explanation:

<h3>so sorry</h3>

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The sum of three numbers is 130 . The first number is 10 more than the third. The second number is 3 times the third. What are t

harina [27]

F=10+T

S=3T

F+s+t=130

(10+t)+3t+t=130

10+5t=130

5t=120

T=24

F=34

S=72

Check:

24+34+72=130

5 0

3 years ago

Add 1m 35cm to 3m 90cm 25mm

iren2701 [21]

<span>1m +
35cm = .35m +
3m +
90cm =.90 m +
25mm = .025m +

</span>
<span><span>+ 1.0 m
+ 0.35m
+ 3.0 m
+ 0.90 m
+ 0.025m</span>

= 5.275 meters

</span>

8 0

3 years ago

Consider the equation 9x+3=x−1. Squaring the left side and simplifying results in _______. Squaring the right side and simplify

bixtya [17]

Answer:

The first blank is 81 $x^{2}$ +9=x-1

The second blank is 9x+3=x^2-1

Step-by-step explanation:

For the first part, you must set up the equation (9x+3)^2 then you must multiply the exponent to the inside exponents $9^{2} x^{2}$ + $3^{2}$ next, simplify.

81 $x^{2}$ +9=x-1

For part two, set up equation. $x^{2} -1^{2}$ Then simplify 9x+3= $x^{2} -1$

6 0

3 years ago

Hiii need help on math :))) have a great day (the top says Leanard records the number of chirps per minute ( x ) that crickets m

aalyn [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

James has a job with a current salary of $42,000. He wants to earn a college degree that will take him 2 years to complete and i

FinnZ [79.3K]

To recover the investment James will take $\boxed{2.5{\text{ years}}}.$

Further Explanation:

Given:

The current salary of James is $\$ 42000.$

The time taken to complete the college degree is $2{\text{ years}}.$

The cost of the college degree is $\$ 28000.$

The James’ new salary after college degree will be $\$ 56000.$

Calculation:

The total investment of James can be calculated as follows,

$\begin{aligned}{\text{Investment}} &= {\text{Salary of 2 years}} + {\text{2 years tuition fees}} \\&= 2 \times 42000 + 2 \times 28000\\&= 84000 + 56000\\&= \$ 140000\\\end{aligned}$

The total investment for 2 years will be $\$ 140000.$

The James’ new salary after college degree will be $\$ 56000.$

The time taken by James to recover $\$ 140000.$

$\begin{aligned}{\text{Time}} &= \frac{{140000}}{{56000}}\\&= 2.5{\text{ years}}\\\end{aligned}$

To recover the investment James will take $\boxed{2.5{\text{ years}}}.$

Learn more:

Learn more about inverse of the function brainly.com/question/1632445
Learn more about range and domain of the function brainly.com/question/3412497
Learn more about profit and loss brainly.com/question/2479097

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Investment and return

Keywords: James, job, current salary, salary, $42000, earn, college, college degree, 2 years, complete, graduation, cost, $28000, per year, investment, recover, new salary, work, able, school, full time.

6 0

4 years ago

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