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
Bezzdna [24]
4 years ago
14

It is known that:the pair of variables x=5, y=7 is the solution to the equation ax–2y=1. Find the coefficient a.

Mathematics
2 answers:
kicyunya [14]4 years ago
8 0

Answer:

a = 3

Step-by-step explanation:

Fill in the given values:

a*5-2*7 = 1 =>

5a = 1 + 14

a = 15/5 = 3

Ierofanga [76]4 years ago
4 0

Answer:

a=3

Step-by-step explanation:

First, you replace the variables x and y in the equation with their respectful values, making the equation 5a-2(7)=1.

Then, you simplify the -2(7), which equals 14, making the equation 5a-14=1.

Then, you add 14 from both sides, making the equation 5a=15.

Finally, you divide both sides by 5, making the answer a=3.

You might be interested in
If an endpoint is included—shown by a closed dot, such as in the graph to the right—use = instead of ≤ or ≥ to indicate the numb
kodGreya [7K]

Answer:

<4

Step-by-step explanation:

Look it up

8 0
3 years ago
Read 2 more answers
A curve is describe by the following parametric equations:
soldi70 [24.7K]

Answer:

A. The curve is a parabola with a vertex at (3,-4) and is traced from left to right for increasing values of t.

Step-by-step explanation:

x = 3 + t

y = t² − 4

Eliminating the parameter:

t = x − 3

y = (x − 3)² − 4

This is an upwards parabola with a vertex at (3, -4).

x = 3 + t, so as t increases, x increases.

So the curve is traced from left to right.

7 0
3 years ago
Robert says the expression 2+3 times 7 and 2+(3 times 7) have the same value. Is Robert correct? Explain your answer and evaluat
erastovalidia [21]
Yes because you multiply first so in this case you multiply 7 and 3 first. Since the second expression is in parenthesis you do that first just like you do 7 times 3. Then you just add 2 to that. The value of both expressions is 23
4 0
3 years ago
Please help im crying
inysia [295]
Ok I gotcha I’ll let
7 0
3 years ago
Read 2 more answers
An incentive clause in Barry Bonds contract allows for a 3.4% bonus if he hits over 719 home runs in this season. His contract i
N76 [4]
The bonus would be worth $493,000.

3.4% = 3.4/100 = 0.034; 3.4% of 14500000 = 0.034(14500000) = 493000.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Is this figure defined by points E, F, G, and H a rectangle? Justify your answer.
    12·1 answer
  • Find an equation of the line that (
    5·1 answer
  • When 5 times a number is added to twice the number the result is 10. what is the number?
    8·1 answer
  • name at least two Coastal features that are shaped by erosion and two costal features that are shaped by deposition
    15·1 answer
  • Which term completes the product so that it is the difference of squares?
    15·2 answers
  • Please help me with this question
    10·1 answer
  • If 3 boys can build 12 model airplanes in a certain length of time, how many planes can 15 boys make in the same length of time
    11·1 answer
  • For an upcoming school dance, Mr. Abbot bought 24 bags of pretzels and 18 bags of chips.
    5·1 answer
  • Before rock climbing, Michelle wants to know how
    6·1 answer
  • The conference room can hold fewer than 100 people<br><br> What is the equation for this question
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!