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
Anastasy [175]
3 years ago
7

Irina has 10 coins, all nickels and dimes, worth a total of $0.70. This is shown by the system of linear equations, x + y = 10 a

nd 0.05x + 0.1y = 0.7 How many nickels does she have? 4 6 7 10
Mathematics
1 answer:
sdas [7]3 years ago
5 0
6 nickels- 6+4=10, .05(6)+.1(4)=.7
                                .3+.4=.7
You might be interested in
Find the slope of the line that passes through (-3,-1) and (-5,4)
tester [92]

Line is Passing through the Points (-3 , -1) and (-5 , 4)

Slope of a Line Passing through two points (x₁ , y₁) and (x₂ , y₂) is given by :

\heartsuit\;Slope(m) = \frac{y_1 - y_2}{x_1 - x_2}

here x₁ = -3 and x₂ = -5 and y₁ = -1 and y₂ = 4

\heartsuit\;Slope(m) = \frac{-1 - 4}{-3 + 5} = \frac{-5}{2}

3 0
3 years ago
PLS HELP I WILL MARK BRAINLIEST
Anestetic [448]

Answer:

16 degrees

Step-by-step explanation:

Divide ABD by 4 to produce a 1:3 ratio of the angles

6 0
2 years ago
The four Fifth Grade classes at Smith Elementary School are having a competition to collect Box Tops. Below is the information a
Rzqust [24]

Answer:

ysgwhdbjsbamssnkfnenxndnkx4iihug58hs

7 0
2 years ago
How do I find the critical points?
podryga [215]
Critical points is where the derivative (slope) is zero or does not exist. So to do this we have to find the derivative of our function:

\frac{d}{dx}(x^{2} - 1)^{3}

So we apply chain rule:

= 3(x^{2} - 1)^{2} * 2x

Set our first derivative to zero and solve for x:

3(x^2 - 1) * 2x = 0

So we can see that (by plugging in) 0, -1 and 1 makes our solution true

So our critical value is x = 0, x = -1, x = 1
5 0
3 years ago
Is height over time that a football is thrown across the field an exponential function
xxTIMURxx [149]
No if it was, the football would keep going up forever and keep going up faster as it was released
physics and common sense tells us that there is air resistance to slow the rise of the football

not exponential
6 0
3 years ago
Other questions:
  • Harper wrote the expression 15-6+7 to represent "15 minus the sum of 6 and 7". Evaluate 15 - 6 + 7 and then exposing why Harper'
    5·1 answer
  • When Shondra makes an online purchase, a 15% discount is applied to the retail price and then a 6.25% tax is added to this disco
    13·1 answer
  • Please Help I'll Give Brainliest<br><br><br> -5.6 - 3.2 <br><br> show work
    10·1 answer
  • Help please I will mark brainliest for the first person who answers ​
    7·2 answers
  • Box A is 12 inches by 18 inches by 24 inches. Box B is 12 inches by 12 inches by 30 inches. How much greater is the volume of Bo
    10·1 answer
  • Jamal buys 33 bolts that cost $0.38 each.
    15·1 answer
  • Pleasee please help me i beg im struggling with this question..
    12·2 answers
  • In the figure to the right, AB=7 1/2m, BC=2 1/4 m, and DE=1 1/4m. Find the perimeter of the figure if all angles are right.
    13·1 answer
  • PLZ HELP WILL GIVE BRAINLEST
    9·1 answer
  • Which equation is true for the triangle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!