4 years ago

What do we need to do?

Mathematics

2 answers:

VashaNatasha [74]4 years ago

4 0

30 packages of rolls

svlad2 [7]4 years ago

3 0

First, find how many hot dogs: 12 x 15 = 180

Then, divide # of hot dogs by # of rolls in package: 180/6 = 30

You need 30 packages of rolls

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Christina is making a salad for a dinner party with 1.78 pounds of lettuce and 4.36 pounds of tomatoes.

gizmo_the_mogwai [7]

Answer:

A) 2.58 pounds

Step-by-step explanation:

To solve you would have to subtract the pounds of tomatoes from the pounds of lettuce. The equation would look like this,

4.36 - 1.78 = 2.58

Hope that helps and have a great day!

6 0

4 years ago

Solve 9x^2- 17x- 85 = 0 Give your solutions correct to 3 significant figures.

dybincka [34]

Answer:

$x =\frac{17}{18} +\frac{1}{18} \sqrt{3349}$ OR $x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}$

Step-by-step explanation:

9x2−17x−85=0

For this equation: a=9, b=-17, c=-85

9x2+−17x+−85=0

Step 1: Use quadratic formula with a=9, b=-17, c=-85.

$x =\frac{-b + \sqrt{b^{2}-4ac } }{2a}$

$x =\frac{-(-17)+\sqrt{(-17)^{2} -4(9)(-85)} }{2(9)}$

$x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}$

4 0

2 years ago

Which expression represents a positive integer? F. – 6² H. (-5) G. (-3) 1.-23

marta [7]

F -6*-6 = 36 which is a positive interger

3 0

3 years ago

What is the rule for this pattern? 1st term:32, 2nd term:36, 3rd term:40

Alenkasestr [34]

Answer:

Add four to each sum

Step-by-step explanation:

32, 36, 40

32 + 4 = 36

36 + 4 = 40

Rule: Add four to each sum

Hope this helped!

(Let me know if I got something wrong!)

4 0

3 years ago

Read 2 more answers

two cars travel in opposite directions, starting from the same place at the same time. One travels at an average rate of 48 mile

asambeis [7]

So in 1 hour they will be 48+55=103 miles apart
how many hours will it be in 618
103 times x hours=618
divide both sides by 103
x=618/103
x=6

the answer is 6 hours

6 0

3 years ago