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
Lapatulllka [165]
3 years ago
10

WILL GIVE BRAINLIEST, PLS HELP

Mathematics
2 answers:
marusya05 [52]3 years ago
7 0

My answers were

d=2.6

c=1.45

kvv77 [185]3 years ago
7 0

4c+2d= 11

3.5d=41-22c

Bring 22c to the left hand side . The sign changes from negative to positive.

4c+2d=11

22c+3.5d=41

Multiply the first equation by 22. Multiply the second equation by 4 . I am eliminating c first

88c + 44d= 242

88c +14d=164

Then minus for the two questions.

30d= 78f

d= 78 /30

Then divide the two numbers by 6

d= 13/5

d=2.6

Next find c

The next step is substitution into any of the two equations.

4c +2d=11

4c+2( 2.6) =11

4c +5.2=11

4c = 5.8

c =1.45

Final answer: (1.45 , 2.6)

You might be interested in
An introductory psychology class has 9 freshman males, 15 freshman females, 8 sophomore males, and 12 sophomore females. A rando
hjlf

Answer:

The probability is \frac{16}{43}

Step-by-step explanation:

The psychology class has 9 freshman male, 15 freshman females, 8 sophomore male and 12 sophomore female.

Total population constitution of the class=

17 males and 27 females and 44 students in total.

If on selecting on the first attempt, a male has been picked up then the number of males for the picking up in the second attempt has to decrease by one.

Also, the total number of students from which it has to be selected also decreases by 1, because one child has already been selected.

Therefore for Second Attempt, Total 43 students and 16 males.

Probability=\frac{No.OfFavorableOutcomes}{TotalNo.OfOutcomes}

Probability=\frac{16}{43}

8 0
3 years ago
8×1+5×(1/10)+9×(1/1,000)
dybincka [34]
8×1+5×(1/10)+9×(1/1000)
8+5×(.1)+9×(.001)
8+.5+.009
Answer is 8.509

7 0
3 years ago
Please help me please I need help!!!!!!!!!!!!!!!!!!!hshdjdndndbdbnfjfkfkfkdkdkfkfjdjfiid
Serggg [28]

y = (x - 2)(x + 5)    First I would multiply (x - 2) and (x + 5) together

y = x² + 5x - 2x - 10

y = x² + 3x - 10


Next I would plug in a number for x to find its y value. I will plug in 0

y = 0² + 3(0) - 10

y = -10

(0, -10)   [this is the y-intercept (the y value when x = 0)]


Your answer is Graph A because the y-intercept is (0,-10)

6 0
4 years ago
36^x-2=6 solve for x
Lina20 [59]

Answer:

x = \frac{in (8)}{in (36)}  if you consider doing decimal form x = 0.58027921. . .

Step-by-step explanation:

Take logarithm of both sides of the equation to remove the variable from the exponent.

3 0
3 years ago
Sonali invests 15% of her monthly salary in insurance policies.
strojnjashka [21]

Answer:

₹42,500

Step-by-step explanation:

Let Sonali's monthly income be ₹x

<h2>According to the question </h2>

15\% \:ofx + 55\% \: of \: x + 12750 = x

=  >  \frac{15}{100} x +  \frac{55}{100} x + 12750 = x

=  >  \frac{70}{100} x + 12750 = x

=  > 12750 = (1 -  \frac{70}{100} )x

=  > 12750 = 30x

=  > x =  \frac{12750 \times 10}{3}

=  > 42500

So your answer will be ₹42,500.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which equation represent a horizontal lines? <br><br>A. x= y + 2<br>B. y= 2<br>C. y= x + 1<br>D. x=2
    13·1 answer
  • Plz help me with 15 and 16
    13·2 answers
  • Whats the answer for 55.78 +4.6
    6·2 answers
  • Help please 30 points
    9·2 answers
  • A packing company is doing an inventory of boxes. Their most popular box is display below: 2ft,(3x-5)ft,(2x-1)ft you can use the
    6·1 answer
  • A lack of financial literacy can cause you to lose ur.. A.as cardB. Citizenship. C. Civil rights. D. Life savings
    5·2 answers
  • 9/29/2020
    13·2 answers
  • The grassy area of a playground has a side length of x and a side of width of x + 3 what is the area of the playground?
    5·2 answers
  • Please help me<br> the formula<br> A=1/2 X bX h
    10·1 answer
  • Find the area of this semi-circle with radius, r = 75cm.Give your answer rounded to 1 DP.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!