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Vesna [10]
3 years ago
15

5x-6y=-25 and 4x-3y+20=0 How many solutions does the system have?

Mathematics
1 answer:
natta225 [31]3 years ago
8 0
It has only 2 solutions
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Miriam is playing a simple game of dice. For every 1 or 6 rolled, Miriam will
Nat2105 [25]

Answer: Win $0.33

Step-by-step explanation:

5 0
2 years ago
John needs to produce a scale diagram of a bedroom using a scale of 1:40. The length of the room is 3.4 metres. What is the leng
Varvara68 [4.7K]

Answer:

8.5cm

Step-by-step explanation:

convert 3.4metres to cm that is by multiplying by 100

3.4×100=340cm

1rep 40

?rep 340

that is 340/40

=8.5cm

5 0
3 years ago
Read 2 more answers
PLEASE I REALLY NEED HELP ON THIS​
saul85 [17]
Answer:
a) a= (3/4)t
4a = 3t
b = (5/2)t
2b = 5t
b)See explanation below
c) It will take 30.075 hours for the whole business to make at least $500 profit
Step-by-step explanation:
a) First we would represent the information given in terms of amount of bracelet produced and time spent in production with variables in order to convert to linear equations
Let number of bracelet Darrelle makes = a
Number of bracelet Danica makes = b
Let the time spent in producing them in hours = t
Darrelle takes 4 hours to make 3 bracelets:
Rate of producing bracelet = (number of bracelet produced)/time
Rate = a/t = 3/4
4a = 3t
Linear equation form: y = mx + c
a= (3/4)t
The above equation is in the slope-intercept form indicating the intercept = 0 and slope = 3/4
4a - 3t = 0 (equation in standard form )
Danica makes 5 bracelets every 2 hours:
Rate of producing bracelet = (number of bracelet produced)/time
Rate = b/t = 5/2
2b = 5t
Linear equation form: y = mx + c
b = (5/2)t
The above equation is in the slope-intercept form indicating the intercept = 0 and slope = 5/2
2b - 5t = 0 (equation in standard form)
b) The equations are linear equations, hence they can be graphed.
But as regards graphing using special functions, this answer can only be answered by you as I'm not aware of the special functions discussed in the course.
c) Darrelle makes $10.50 in profit per bracelet.
Danica makes $3.50 in profit per bracelet
Since Darrelle and Danica work the same amount of time, we have to find the relationship between their profit, the number of bracelets produced and the time.
Profit for Darrelle for 'a' number of bracelet product = $10.50 × a = $10.50a
Profit for Danica per 'b' number of bracelet product = $3.50 × b = $3.50b
Let P = total profit made by both
P = $10.50a + $3.50b
Relationship of profit in terms of time spent in production when they work same amount of time:
P = $10.50(3/4 ×t)+ $3.50(5/2 × t)
P = 16.625t
When P = $500, t = ?
500 = 10.50(3/4 ×t)+ 3.50(5/2 × t)
500 = 7.875t + 8.75t
500 = 16.625t
t = 30.075 hours
It will take 30.075 hours for the whole business to make at least $500 profit
7 0
3 years ago
Ronnie bought six ice cream cones for himself and his friends $.17 tax was added to the price of each coin the total cost was $1
brilliants [131]

Answer:

The  price for one cone before tax is $2.26.

Step-by-step explanation:

The tax for each cone is $.17

Ronnie buys six cones. The total tax for the cones is 6 X $.17 = $1.02

Next, we subtract the total taxes from the total price $14.58 - $1.02 = $13.56

So Ronnie owed $13.56 for the six cones BEFORE taxes. We takes this amount and divide it by six to get the cost for one cone.

$13.56 / 6 = $2.26 per cone.


Check our work

Purchase one cone for $2.26 plus $.17 cents tax = $2.43 total cost per cone.

6 cones at $2.43 each would be 6 X $2.43 = $14.58.

This matches the total bill from the story problem.

4 0
3 years ago
A pure green beetle is crossed with a pure brown beetle. All of the offspring are green. Which explanation below, correctly expl
myrzilka [38]

Answer:

C.

The green color gene is more dominant over the gene for brown color.

Step-by-step explanation:

Whichever gene is dominant is the one that will be applied to the organism.

8 0
3 years ago
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