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
Nutka1998 [239]
3 years ago
5

Okay so we have this question of the week thing and this week our answer is 4 so i need a algebra problem that is a two step equ

ation and equals 4 can someone please help me ?
Mathematics
2 answers:
Mila [183]3 years ago
8 0
An easy one is this: 15 / 3 - 2
andreev551 [17]3 years ago
5 0
400x - 1600 = 0

400x = 1600
x = 1600/400
You might be interested in
Mr. Loza had to stop at 7-Eleven for gas on his way to school. He bought four gallons of gasoline for $16.80. How much is the pr
mihalych1998 [28]

Answer:

Every gallon costs $4.20

Step-by-step explanation:

If you divide the money he spent and the gallons he needed, you come up with a total price of $4.20 a gallon. For the amounts of gallons he could get with $40 bucks, he would have 9.5 gallons, as you just need to divide 40 by 4.2. I hope this helps :)

4 0
3 years ago
Read 2 more answers
(a) A lamp has two bulbs, each of a type with average lifetime 1400 hours. Assuming that we can model the probability of failure
Temka [501]

Answer:

For first lamp ; The resultant probability is 0.703

For both lamps; The resultant probability is 0.3614

Step-by-step explanation:

Let X be the lifetime hours of two bulbs

X∼exp(1/1400)

f(x)=1/1400e−1/1400x

P(X<x)=1−e−1/1400x

X∼exp⁡(1/1400)

f(x)=1/1400 e−1/1400x

P(X<x)=1−e−1/1400x

The probability that both of the lamp bulbs fail within 1700 hours is calculated below,

P(X≤1700)=1−e−1/1400×1700

=1−e−1.21=0.703

The resultant probability is 0.703

Let Y be a lifetime of another lamp two bulbs

Then the Z = X + Y will follow gamma distribution that is,

X+Y=Z∼gamma(2,1/1400)

2λZ∼

X+Y=Z∼gamma(2,1/1400)

2λZ∼χ2α2

The probability that both of the lamp bulbs fail within a total of 1700 hours is calculated below,

P(Z≤1700)=P(1/700Z≤1.67)=

P(χ24≤1.67)=0.3614

The resultant probability is 0.3614

8 0
3 years ago
There was 145 children that went to the park today and 60% of the children were boys. How many of the children were girls at the
Irina18 [472]

First find 60% of 145 =

60% of 45 equals 87.

Now subtract 87 from 145.

145 - 87 = 58

So there were 58 girls.

7 0
3 years ago
Read 2 more answers
Write an equation of the line that passes through (1,2) and is parallel to the line y = -5x+4
ArbitrLikvidat [17]

Answer:

y =-5x + 7

Step-by-step explanation:

y = -5x + 4

Slope = -5

Parallel lines have same slope

Slope of the parallel line to this line = -5

(1 , 2)

y -y1 =m(x - x1)

y - 2 = -5(x - 1)

y -2 = -5x + 5

   y = -5x + 5 + 2

  y = -5x + 7

8 0
3 years ago
A triangle has side lengths of (6.2p + 4.5q) meters, (3.4p – 0.7r) meters, and (2.9r – 4.1q) meters. Which expression represents
Natalija [7]

Answer:

9.6p + 0.4q + 2.2r meters (answer A)

Step-by-step explanation:

We sum up the three side lengths to obtain the perimeter of the triangle:

 (6.2p + 4.5q) meters, , and (2.9r – 4.1q) meters

+ (3.4p – 0.7r) meters

+ (2.9r – 4.1q) meters

---------------------------------

9.6p + 0.4q + 2.2r meters (answer A)

3 0
3 years ago
Other questions:
  • What is the answer 7÷5,631 eqall
    15·1 answer
  • 48 feet = how many yards
    14·1 answer
  • Simplify. 6m+7n+5m−3nhow to earn points
    14·1 answer
  • HARDEST QUESTION EVER OMG! (That was my stereotypical teenage girl impression) ;)
    11·1 answer
  • Find the slope:<br> (5,8) and (-3, 2)
    8·1 answer
  • Calculator display for<br> 1/9
    14·2 answers
  • Can someone also explain how to get the answer thank u
    10·1 answer
  • A train in Japan can travel 813.5 miles in 5 hours <br><br> Find the unit rate in miles per hour
    7·1 answer
  • Stem of Equations<br> Substitute (2, 1) into x + 3y = 5 to get<br> =
    5·1 answer
  • What are the zeros of f(x) = x(x - 8)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!