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Fittoniya [83]
3 years ago
11

PLEASE HELP ME! IM ON A TIMED QUIZZZZ

Mathematics
1 answer:
viktelen [127]3 years ago
4 0

Answer:


Step-by-step explanation:

Part A: 20 shows $20 which Cory earns by mowing one lawn. 9 shows $9 which he earns by trimming one hedge. x shows the number of lawns. y shows the number of hedges. Part B: There are two terms in this expression. 20x which shows the total earning of Cory by mowing lawns. 9y which shows his earning by trimming hedges. It can be judged by the description of rates explained in part A. Part C: From explanation given in Part C, we can easily see that the expression 9y is used for the total earned from trimming hedges.



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In 5 - 7 complete sentences, answer all of the following question. •Use this image to respond to the following prompt: •Is the s
Dima020 [189]

Answer:

Step-by-step explanation: it’s 0

4 0
2 years ago
What is something you might see a scientist doing?
dusya [7]

Answer:

Scientist's do just general things anyone else would do to solve a problem.

Step-by-step explanation:

Scientists use their senses to observe

Scientists measure things, including distances, and weights.

Scientists also communicate their findings with other scientists and with the public.

If you have any questions feel free to ask in the comments.

4 0
3 years ago
Read 2 more answers
A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes.
Paladinen [302]

Answer:

Answer:

\{ {{20x+30y=280} \atop {y=4x}} .{

y=4x

20x+30y=280

.

Where xx is the number of small boxes sent and yy is the number of large boxes sent.

Step-by-step explanation:

Let be xx the number of small boxes sent and yy the number of large boxes sent.

Since each small box can hold 20 books (20x20x ), each large box can hold 30 books (30y30y )and altogether can hold a total of 280 books, we can write the following equation to represent this:

20x+30y=28020x+30y=280

According to the information provided in the exercise, there were 4 times as many large boxes sent as small boxes. This can be represented with this equation:

y=4xy=4x

Therefore, the system of equation that be used to determine the number of small boxes sent and the number of large boxes sent, is:

\{ {{20x+30y=280} \atop {y=4x}} .{

y=4x

20x+30y=280

.

7 0
3 years ago
Can someone explain this I dont understand it
IrinaVladis [17]
Y = mx + b

m is your slope AKA rate of change
b is the y intercept.

from the graph we can see that the y intercept (b) is 15. (look at the y axis and see what point the line crosses on the y, here it is 15, in-between 10 and 20)

slope is rate of change. to figure this out remember slope = rise over run:

slope = \frac{rise}{run}

so pick two points. how much does one point rise after the other point you picked? In the graph it rises 1 square so rise = 1

Now looking at the same two points, how far away from each other are they on the x axis? Looking at the graph they are 2 squares away from each other. so run = 2

Now plug these numbers into the rise over run formula:

slope \: = \frac{1}{2}

Now we have everything we need to put into our formula for a line:

y = mx + b
y = \frac{1}{2} x + 18

For number 16 you should get:

y = \frac{1}{5} x + 3

after you do the same steps again yourself
8 0
3 years ago
Hi . how u r doing good. pls help me with these questions , I really need help
sleet_krkn [62]

Answer:

Which grade's question is this?

5 0
2 years ago
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