1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhenek [66]
2 years ago
9

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number

Mathematics
2 answers:
Katen [24]2 years ago
8 0

Answer:

Step-by-step explanation:

Double 15 x 2 = 30 -5 =25 +original 15 would be 40 answer is 15

GuDViN [60]2 years ago
7 0
The answer would be 25 because your trying to find less of the number
You might be interested in
The sum of the quotient of a number and and 3 and 8 is 16 what is the number
zhuklara [117]
After having done this on paper:

\frac{n}{3} + 8 = 16

We want to isolate the variable, and the first step is to subtract the 8.

\frac{n}{3} = 8

Since the <em>n</em> is being multiplied by 3, and that = 8, we can multiply both sides by 3.

<em>n</em> = 24

Let me know if this helped you understand better.

Also, you can check this by substituting in 24 for <em>n</em>.
5 0
3 years ago
Write an e explicit formula for an, the nth term of the sequence 22, 19, 16, ...<br>​
alexira [117]

Answer:

a_{n} = 22 + (-3)(n - 1)

Step-by-step explanation:

The first term is 22. It looks like each term after that is the term before, plus a negative 3.

a-sub-one  = 22

common difference = d= -3

Formula for a_{n}:

a_{n} = 22 + (-3)(n - 1) = 25 - 3n

4 0
3 years ago
18. The temperature was
Alex_Xolod [135]

Answer:

Step-by-step explanation: Find the number between 40 and -10.

start at 40 and end at -10.

-40=0

0-10=-10

the tempature changed by 50 degrees.

6 0
2 years ago
Navy’s Works At A Cell phone Store Monday To friday . She Earns $80 Per day plus $8 per Phone Sold . On tuesday , Nayva Makes at
rodikova [14]

Answer:

D.

Step-by-step explanation:

If She earns 80$ PER day + 8$ per phone sold and makes AT LEAST 176$ on Tuesday, You need to figure out how many phones she has sold by Tuesday.

Okay so now you need to set up your problem.

8x + 80 ≥ 176

Take away the 80, then take 80 from 176.

176 - 80 = 96

96 ÷ 8

x ≥ 12

3 0
3 years ago
In a jar of ten beads, seven are red and three are blue. a bead is drawn from the jar five times with replacement. what is the p
MatroZZZ [7]
<span>In a jar of ten beads; since 3 are blue; probability of picking a blue ball, B, = p(b) = 3/10. And P (of not picking a blue ball) ; p(b') = 7/10. Since it occurs with replacement, probabilities doesn't change Probaility of picking k blue balls from on n attempts is given by P_n(k) P_n(k) = (n, k) p^(k) q^(n -k) where p and q are b and b' respectively. P_5(2) = (5 , 2) (0.3)^(2) (0.7)^(5 - 2) P_5(2) = 5C2 (0.3)^(2) (0.7)^(3) = 0.3087</span>
6 0
3 years ago
Other questions:
  • Safiya deposited money into a bank account that earned 6.5% simple interest each year. After 312 years, she had earned $36.40 in
    12·2 answers
  • Find the value of the integral that converges.<br> ∫^-5_-[infinity] x^-2 dx.
    8·1 answer
  • Evaluate start fraction 2 over 3 end fractionx for x = three-fourths
    13·1 answer
  • A $300 suit is marked down by 30%. Find the sale<br> Price?<br> Please help me hurry
    14·2 answers
  • How must m2 be changed to keep the lines parallel?
    12·1 answer
  • Becky, an artist, plans to paint and sell some miniature paintings. She just bought some brushes for $1, and paint and canvas fo
    13·1 answer
  • Last question of the unit test​
    8·1 answer
  • Indicate the general rule for the arithmetic sequence with a3 = -12 and a8 = -37
    12·1 answer
  • Melanie recently hired an electrician to do some necessary work. On the final bill, Melanie was charged a
    11·2 answers
  • Select the correct answer.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!