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
Bess [88]
4 years ago
12

Can someone help me

Mathematics
1 answer:
ryzh [129]4 years ago
7 0

Answer:

Answer a: mST=20

Answer b: mST=48

Step-by-step explanation:

Problem a:

3a-5=2a+50

a=55

2(55)+50=160

180-160=20

Problem b:

180=4c-12

192=4c

48=c

You might be interested in
Jens garden Is 4feet wide and 4feet long.what is the area of jens garden
Sliva [168]
16 feet is the area
3 0
4 years ago
Read 2 more answers
When Joseph finished packing his backpack, it had a mass of 5 kilograms. What was the mass of the backpack in grams
worty [1.4K]
There is 1000 grams in a kilogram so he had a mass of 5,000 grames in his bag
7 0
4 years ago
A surveyor, Toby, measures the distance between two landmarks and the point where he stands. He also measured the angles between
vagabundo [1.1K]
What we know so far:
Side 1 = 55m
Side 2 = 65m
Angle 1 = 40°
Angle 2 = 30°

What we are looking for:
Toby's Angle = ?
The distance x = ?

We need to look for Toby's angle so that we can solve for the distance x by assuming that the whole figure is a SAS (Side Angle Side) triangle.

Solving for Toby's Angle:
We know for a fact that the sum of all the angles of a triangle is 180°; therefore,
180° - (Side 1 + Side 2) = Toby's Angle
Toby's Angle  = 180° - (40° + 30°)
Toby's Angle = 110°

Since we already have Toby's angle, we can now solve for the distance x by using the law of cosines r² = p²+ q²<span>− 2pq cos R where r is x, p is Side1, q is Side2, and R is Toby's Angle.
</span>
x² = Side1² + Side2² - 2[(Side1)(Side2)] cos(Toby's Angle)
x² = 55² + 65² - 2[(55)(65)] cos(110°)
x² = 3025 + 4225 -7150[cos(110°)]
x² = 7250 - 2445.44
x = √4804.56
x = 69.31m

∴The distance, x, between two landmarks is 69.31m
8 0
3 years ago
Finley and Cooper are wanting to go to SkyZone. Finley pays $53.75 for 5 hours. How much will Cooper pay for 3 hours?
IrinaK [193]

Answer:

<em>10.75 x 3 = $32.25</em>

Step-by-step explanation:

first, we need to figure out how much the cost is for one hour:

53.75/5 = 10.75

therefore, the cost at skyzone for 1 hour is $10.75 , BUT, we still need to figure out the time for 3 hours.

so, 10.75 x 3 = $32.25

6 0
3 years ago
Read 2 more answers
Nikki is 5 years older than Jamie. The product of their ages is 126. Which equation could be used to find Nikki’s age, n?
slavikrds [6]

Answer:

126 = n × (n - 5)

Step-by-step explanation:

If Nikki's age is <em>n </em>and she is 5 years older than Jamie, then Jamie is 5 years younger than Nikki's <em>n </em>number of years.

7 0
4 years ago
Read 2 more answers
Other questions:
  • Add (7х2 – 3x) + (5х – 6).
    7·1 answer
  • Let f(x)=x^2-16. Find f^1(x)
    13·1 answer
  • The school had 366 chairs and 12 classrooms. How many chairs could they put in each classroom?
    5·1 answer
  • Common factor for 405
    8·1 answer
  • Todd uses white tiles and some black tiles to make mosaic the mosaic has a total area of 144 square centimeters each tile has an
    5·1 answer
  • What is the slope of the line that passes through the points (1,-5) and (3,5)?
    10·1 answer
  • A parallelogram is shown below:
    15·1 answer
  • What is the value of x?
    15·2 answers
  • Please help explanation if possible
    14·2 answers
  • The local gym is offering this new promotion: An enrollment fee of $40 and a monthly fee of $30. Which of the following expressi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!