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Pani-rosa [81]
3 years ago
14

7th grade math help meee plzzzz

Mathematics
1 answer:
ale4655 [162]3 years ago
8 0

Answer:

-18.4 + 35.4

Step-by-step explanation:

Use the method keep; change; flip.

Keep the negative -18.4

Change the minus sign to a plus sign

Flip the -35.4 to a positive 35.4

Even though the equations are different the answer is still the same.

Hope this helps!

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Based on the ratios shown ion the double number line, what is the cost for 5 pounds of almonds? :)
denis-greek [22]
I found the answer to this by first dividing 34 by 4 to get 8.5. We already know what 4 divided by 4 is. For every one pound of almonds, it costs $8.50. Since we know that we need to find out how much it costs for 5 pounds of almonds, we simply multiply 8.5 by 5 to get 42.5. It costs $42.50 to buy 5 pounds of almonds.


7 0
3 years ago
I have 3 questions, 20 points each please explain your answer and show work, and PLEASE GIVE AN ACTUAL ANSWER. PLEASE ANSWER SOO
alexdok [17]

Answer:

Step-by-step explanation:

1.From the given triangle, ABC, using the proportionality theorem, we get

\frac{FA}{CA}=\frac{EF}{BC}

⇒\frac{8}{40}=\frac{5}{x}

⇒x=25ft

Thus, the height will be 25 feet.

2.  

Statement                                                   Reason

1.∠C≅∠E                                                     Given

2. ∠ABC≅∠DBE                                Vertically opposite angles

3. ΔABC is similar to ΔDBE               AA similarity rule.

5 0
3 years ago
A force of 200 Newtons is applied to a machine to lift a 1,000 Newtons load. What is the MA of the machine?
vovikov84 [41]

Answer:

5

Step-by-step explanation:

The mechanical advantage of a machine is the ratio of the force that you need to input to how much is outputted. 200:1000=1:5, meaning that the mechanical advantage is 5. Hope this helps!

3 0
3 years ago
PLZ HELP ILL GIVE BRAINLEST FOR RIGHT ANSWER AND PLS EXPLAIN TOO
UNO [17]

Answer:

166

Step-by-step explanation:

A=2(wl+hl+hw)=2·(4·5+7·5+7·4)=166

5 0
3 years ago
Hi guys can you please help me
marissa [1.9K]

Answer: 40


Step-by-step explanation:


Finding perimiter is simple! You add the L & the W by each other and then times that by 2!


15 + 5 = 20


20 X 2 = 40!


- R3KTFORGOOD ☕

8 0
3 years ago
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