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svet-max [94.6K]
2 years ago
13

Elizabeth bought lemons (l) and apples (a). Each apple costs 35¢ and each lemon costs 15¢. All together, she bought 17 lemons an

d apples for $3.95. Which system can be used to determine how many of each she bought?
Mathematics
2 answers:
Zina [86]2 years ago
3 0

Step-by-step explanation:

<u>Given:</u>

  • Lemons - l and apples - a
  • a = 35¢, l = 15¢
  • Number of apples and lemons = 17
  • Cost of lemons and apples = $3.95 = 395¢

<u>System as per question:</u>

  • a + l = 17
  • 35a + 15l = 395

Or

  • a + l = 17
  • 0.35a + 0.15l = 3.95
Harman [31]2 years ago
3 0

Step-by-step explanation:

Let the number of apples be a and lemons be l . Then ,

=> a + l = 17

Also ,

=> 35a + 15l = $ 3.95

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what is the width of a rectangle with a length of 6/7 feet and an area of 5 square feet. What is the width of the rectangle
RideAnS [48]

Answer:

5 divided by 6/7 = 35/6 = 5 5/6

Step-by-step explanation:

legth*width=area  so  area/length=width

6 0
3 years ago
What is the slope intercept from for 16x+9y=40
Doss [256]

Answer:

y =  (- \frac{16}{9})x +  \frac{40}{9}is the slope intercept form for 16x+9y=40

Step-by-step explanation:

Here, the given equation is 16 x +  9 y = 40

Now, the slope intercept form of an equation is y = mx + c,

here m = slope of the equation,  b  =  y - intercept

So, now 16x +  9y = 40 on simplification gives

9y  = 40 - 16x

or y = \frac{40 - 16x}{9}  = \frac{40}{9}   - \frac{16x}{9}

or, y =  (- \frac{16}{9})x +  \frac{40}{9}is the slope intercept form of the given equation.

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7 0
3 years ago
HELP ME PLZZZZ!!!!!<br><br><br> It’s just 21 and 22
galina1969 [7]

Answer:

21) 12 cm

22) 5.9 cm

Step-by-step explanation:

21) The base is 10, and if the other two sides are congruent and the perimeter is 36, we can figure out with simple algebra that the sides are 13 cm long.

Half of 10 is 5, so we can use the pythagorean theorem.

5^2+x^2=13^2

Rearranging the variables we have 169-25=x^2

144=x^2

x can be plus or minus 12, but since negative length is impossible we find that x is positive 12 cm.

22) We want to use sine, because we have opposite and hypotenuse. A simple and easy way to memorize this is the SohCahToa method. If we have opposite (O) and hypotenuse (H) we have OH. Soh has the letters O and H, and the S means we should use sine.

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Plug this into a calculator or desmos scientific calculator to get a=5.9

7 0
3 years ago
What number is at this position ?
Katarina [22]
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8 0
3 years ago
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Valentin [98]
Represent the total number of boxes that both jean and clint stack in h hours,

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5 0
2 years ago
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