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
Tpy6a [65]
3 years ago
15

Use substitution to solve s+a=4 and 35+5a=2550

Mathematics
2 answers:
mario62 [17]3 years ago
5 0
35+5(4-s)=2550
35+20-5s=2550
55-5s=2550
-55 -55
-5s = 2495
s = - 499

-499 + a = 4
+499 +499
a = 503
Ivan3 years ago
4 0
S + a = 4   

35 + 5a = 2550

From the second equation:

35 + 5a = 2550

5a = 2550 - 35

5a = 2515

a = 2515/5

a = 503


From      s + a = 4

s + 503 =4

s = 4 - 503

s = -499

Therefore  a = 503,  s = -499 
You might be interested in
A particular fruit's weights are normally distributed, with a mean of 618 grams and a standard deviation of 24 grams. If you pic
Lorico [155]
Answer: The probability is 0.5136.

To find this probability we have to find the range of the values on the normal distribution table.

First, we need to find the percent for each making z-score.

Lower end: 50/24 = 2.08 = 0.0183

Upper end: 2/24 = 0.08 = 0.5319

Now, that we have the upper and lower ends, we can subtract them to find the difference or the range.  

0.5319 - 0.0183 = 0.5136

There is a 51.36% chance they are in the given range.
3 0
3 years ago
In the diagram below, AC and CB, AB and CD, and m(angle)A=33 degrees. Find M(angle)B
hoa [83]

Answer:

15°.

Step-by-step explanation:

1. Angles ADC and CDB are supplementary, thus

m∠ADC+m∠CDB=180°.

Since m∠ADC=115°, you have that m∠CDB=180°-115°=65°.

2. Triangle BCD is isosceles triangle, because it has two congruent sides CB and CD. The base of this triangle is segment BD. Angles that are adjacent to the base of isosceles triangle are congruent, then

m∠CDB=m∠CBD=65°.

The sum of the measures of interior angles of triangle is 180°, therefore,

m∠CDB+m∠CBD+m∠BCD=180° and

m∠BCD=180°-65°-65°=50°.

3. Triangle ABC is isosceles, with base BC. Then

m∠ABC=m∠ACB.

From the previous you have that m∠ABC=65° (angle ABC is exactly angle CBD). So

m∠ACB=65°.

4. Angles BCD and DCA together form angle ACB. This gives you

m∠ACB=m∠ACD+m∠BCD,

m∠ACD=65°-50°=15°.

Have a good Day!

7 0
2 years ago
If someone deposits $3,000 into a savings account, keeps the account open for 6 years, and ends up earning $720 in interest, wha
kykrilka [37]

Answer:

3750

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A charity is selling raffle tickets at $5 apiece. Out of the 100 tickets sold, ten third-place winners will be drawn, each winni
Vsevolod [243]
The answer is <span>No, because one ticket’s expected value is worth $0.50 more than the face value. </span>
3 0
3 years ago
Read 2 more answers
Ill give the brainliest
olga2289 [7]

Answer: I think its A and C

Step-by-step explanation:

Please mark me brainliest

8 0
3 years ago
Other questions:
  • The coordinates of (2,-4) rotated 90° is:
    10·2 answers
  • Which expresses 216:270 in its simple form
    8·1 answer
  • If all angles are 90 degrees, and the crystal has a square base with a height that is larger than one of the square sides, what
    10·1 answer
  • Jessica left her running shoes at school yesterday. Today she walked 4 miles to school to get her shoes, she ran home along the
    13·2 answers
  • Complete this sentence:<br> 12x+24 is equivalent to 4(3x+6) so...
    15·1 answer
  • Can y’all help please
    8·1 answer
  • Can someone help me<br>​
    7·1 answer
  • A particular metal has a density of 25g/cm cubed. Calculate the mass of 178cm cubed of this metal.​
    15·1 answer
  • Divide<br> (-x* + 2x’ +3x– 5x – 2)/(x² – 2x+1)
    11·1 answer
  • In which quadrant does Ø lie if the following statement is true:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!